what handy piece of office equipment did Johann Vaaler invent in the 1900?
342911
read the whole of this link. he invented and patented some kind of paper clip - but maybe not the type that was eventually produced. Most people regard it as a myth that he invented the paper clip - except the Norwegians apparently. Read the wikipedia stuff.
1181009
this guy already made one\n\nthey'd be expensive though\n\nhttp://www.moller.com/
621703
CNC Glass Cutting Machine.\n\nYour question is a little broad, that is a full time job.
71522
The first hand-powered cleaner using vacuum principles may have been the "Whirlwind", invented in Chicago in 1865.\n\nThe first powered cleaner employing a vacuum was patented by H. Cecil Booth, a British engineer, in 1901. He noticed a device used in trains that blew dust off the chairs, and thought it would be much more useful to have one that sucked dust. He tested the idea by laying a handkerchief on the seat of a dinner chair, putting his mouth to it and sucking hard. He nearly choked, but upon seeing the dust and dirt collected on the underside of the handkerchief he realised the idea could work. Booth worked to create a device operating on such principles, and patented such a machine in Britain: the large device, known as the Puffing Billy, was drawn by horses and parked outside the building to be cleaned; suction was then provided by an internal-combustion engine burning petrol (gasoline). However, Booth never achieved great success with his invention.
474836
Heres a great page on the history and creation of the elevator:\n\nhttp://inventors.about.com/library/inventors/blelevator.htm
809277
I would say printing in the form of history books, biographies and other educational printing.\n\nPrinting is one of the oldest technologies and is rapidly becoming passe.
454263
Computer.  It is interactive.
890398
Early in the 1900's (circa 1917) precision curved glass tubes filled with a damping liquid and steel ball were introduced to provide accurate visual angle indication.
686828
office assistant\nsidekick\ncoffee fetcher\ngopher (go for this...)
978474
Office supplies. Anything that you purchsed for office uses.
582629
Hp Officejet. About $1000. :)
760364
Small inexpensive gadgets like this http://www.giftweblog.com/2006/10/07/gift-for-the-office-worker-at-the-desk-alot/
117241
hydrmatic, pneumatic. electronic
115266
It was invented by J. A. Kammerdiner in 1940. Patent #2215044
136968
a'-apple peeler   \nb'-barometer\nc'-computer\nd'-drill\ne'ethernet\nf'-fax\ng'-gyroscope\nh'-hair clippers\ni'-i'-book\nj'-jacuzzi\nk'-kite\nl'-lamp\nm'-movie camera\nn'-nail gun\no'-oxygen machine\np'-perculator\nq'-quisinart\nr'-rock tumbler\ns'-shredder\nt'-trimmer\nu'-umbrella\nv'-vhs player\nw'-weiner turner at 7'-eleven\nx'- x'-ray\ny'-yard sprinkler\nz'-zip drive
1004770
A\nNils Alwall, (1904-1986), Sweden — the dialysis machine \nArchimedes, (c 287 BC-212 BC), Greece \nManfred von Ardenne, (1907-1997), Germany \nWilliam George Armstrong, (1810-1900), England — hydraulic crane \nJoseph Aspdin, (1788–1855), England — Portland cement \nJohn Vincent Atanasoff, (1903-1995), Bulgaria — modern computer \n[edit]\nB\nCharles Babbage, (1791-1871), England — Analytical engine \nLeo Baekeland, (1863-1944), Belgian–American — Velox photographic paper and Bakelite \nRalph Baer, (1922-), German born American — the home video game console \nJohn Logie Baird, (1888-1946), Scotland — a working television \nJohn Bardeen, (1908-1991), USA — co-inventor of the transistor \nTrevor Baylis, (1937-), England — a wind-up radio \nDonát Bánki, (1859-1922), Hungary — inventor of the carburetor \nArnold O. Beckman, (1900-2004), USA — pH meter \nAlexander Graham Bell, (1847-1922), Canada — telephone \nKarl Benz, (1844–1929), Germany — the petrol-powered automobile \nEmile Berliner, (1851-1929), Germany and USA — the disc record gramophone \nTim Berners-Lee, (1955-), England — with Robert Cailliau, the World Wide Web \nBi Sheng, (?-1052), China — primitive movable printing types \nLászlo Bíró, (1899-1985), Hungary — modern ballpoint pen \nOttó Bláthy (1860-1939), Hungary — co-inventor of thetransformer, wattmeter, alternating current (AC) and turbogenerator \nKatherine Blodgett, (1898-1979), England — nonreflective glass \nNils Bohlin, (1920-2002), Sweden — the three-point seat belt \nJános Bolyai (1802-1860), Hungary — discoverer of non-Euclidean geometry \nJoseph-Armand Bombardier, (1907-1964), Canada — snowmobile \nSeth Boyden, (1788-1870), USA — nail-making machine \nWalter Houser Brattain, (1902-1987), USA — co-inventor of the transistor \nLouis Braille, (1809-1852), France — the Braille writing system \nKarl Ferdinand Braun, (1850-1918), Germany — cathode-ray tube oscilloscope \nImre Bródy, (1891-1944), Hungary — co-inventor of krypton-filled fluorescent lamps \nEdwin Beard Budding, (1795-1846), England — lawnmower \nRoger Bacon, (1214-1292), England — magnifying glass \n[edit]\nC\nCài Lún, (50 AD — 121), China — paper \nMarvin Camras, (1916 - 1995), USA — magnetic recording \nChester Carlson, (1906-1968), USA — electrophotography \nWallace Carothers, (1896-1937), USA — Nylon \nAdrian Chernoff, (1971-), USA — Hy-wire, Rubber Bandits \nSamuel Hunter Christie, (1784-1865), England — Wheatstone bridge \nChristopher Cockerell, (1910-1999), England — Hovercraft \nJacques Cousteau, (1910–1997), France — co-inventor of the aqualung \nHolger Crafoord, (1908-1982), Sweden — inventor of the artificial kidney \nJános Csonka, (1852-1939), Hungary — co-inventor of carburetor \nNicolas-Joseph Cugnot, (1725-1804), France — automobile \nJuan de la Cierva, (1895-1936), Spain — the autogyro \nRichard Cinque, (1960-), USA — Sock Clip, Plate Caddy \nWilliam Cullen, (1710-1790), Scotland — first artificial refrigerator \n[edit]\nD\nGustaf Dalén, (1869-1937), Sweden — invented the AGA Lighthouse \nSalvino D'Armate, (?-?), Italy — credited for inventing eyeglasses in 1284 \nJoseph Day, (1855-1946), England — the crankcase compression two stroke engine \nLee DeForest, (1873-1961), USA — triode \nSir James Dewar, (1842-1923), Scotland — Thermos flask \nMiksa Déri (1854-1938), Hungary — co-inventor of transformer \nWilliam Kennedy Laurie Dickson, (1860-1935), Scotland — motion picture camera \nRudolf Diesel, (1858-1913), Germany — Diesel engine \nKarl Drais, (1785-1851), Germany — dandy horse (Draisine) \nCornelius Drebbel, (1572-1633), The Netherlands — first navigable submarine \nRichard Drew, (1899-1980), USA — Scotch (or cellophane) tape \n[edit]\nE\nGeorge Eastman, (1854-1932), USA — film-roll \nThomas Edison, (1847-1931), USA — phonograph, commercially practical light bulb, motion picture projector
1073500
My favorite tool is the ability to reason. It is what separates us from all other animals. I just wish more people used it to behave more "reasonably".\n:-)\nBut if you meant shop tools, I would say the router!