Throughout time, man has created many means for keeping accounting records, tallies and counts. Some civilizations used knots on strings. Others kept records on clay tablets. And of course, a device still in… More »
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The adding machine was invented by a nineteen-year-old French boy named Blaise Pascal way back in the year 1642. Blaise made it to help his father in his work.
http://www.ideafinder.com/history/inventions/addmachine...
Blaise Pascal invented the adding machine in 1642. Very smart nineteen-year-old French boy. He invented it to help his father do his calculations very quickly.
http://answers.ask.com/Science/Mathematics/who_invented...
Throughout time, man has created many means for keeping accounting records, tallies and counts. Some civilizations used knots on strings. Others kept records on clay tablets. And of course, a...
http://www.ehow.com/tag/pascal/
William Seward Burroughs invented the first practical calculator - the history of calculators. ... Burroughs Adding Machine Company; Burroughs Adding Machine Company traced its founding to William Seward Burroughs who invented and patented the first workable adding and listing machine in St. Louis, Missouri in 1885.
inventors.about.com/library/inventors/blcalculator.htm inventors.about.com/library/inventors/blcalculator.htm
William S. Burroughs (1855-1898) invented an adding and listing machine with a full keyboard in the early 1880s, submitted a patent application in 1885, co-founded the American Arithmometer Co.
www.earlyofficemuseum.com/calculating_machines_adding_l... www.earlyofficemuseum.com/calculating_machines_adding_listing.htm
The Adding Machine - Wikipedia, the free encyclopedia
The Adding Machine is a 1923 play by Elmer Rice, and is generally considered to be the first American Expressionist play. The story focuses on Mr. Zero, an accountant at a large, faceless company. ...
en.wikipedia.org/wiki/The_Adding_Machine
Blaise Pascal (re)invented an adding/subtracting machine in 1642 with no knowledge of Shickard's machine. Pascal made many of his machines and is therefore often thought of as the original inventor. His first machine was 14" x 5" x 3" and had 8 digits.
www.hpmuseum.org/adder.htm www.hpmuseum.org/adder.htm
Burroughs Adding Machine Company traced its founding to William Seward Burroughs who invented and patented the first workable adding and listing machine in St. Louis, Missouri in 1885.
www.xnumber.com/xnumber/hancock7.htm
The validity of the replica was debated by many scholars and the adding machine was removed from display. It was thought by some that the drawing was of a ...
users.ju.edu/ssundbe/pascal.html
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Como Vender Inventos
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