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 When did thomas jefferson invent the swivel chair?

Answer Thomas Jefferson invented the swivel chair sometime in the late 18th century where he took a brief break (1793-1796) from public office. The exact date is not well known because Jefferson did not p... Read More »
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Top Q&A For: When did thomas jefferson invent the swivel chair

When was the swivel chair created?

Thomas Jefferson is credited with inventing the swivel chair around 1776, the same year he wrote the Declaration of Independence. Jefferson is believed to have written the Declaration of Independen... Read More »
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When did Thomas Edison invent the perfected phonograph?

Thomas Edison is known for many inventions, including the phonograph. The invention of the phonograph came about as he was working on two other inventions: the telephone and the telegraph. He teste... Read More »
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When did Thomas Edison invent the movie projector?

Thomas Edison first patented the idea for the Kinetoscope in 1888, despite the fact he had not yet invented the device. Edison patented the actual device in 1891, and gave its first public demonstr... Read More »
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When did thomas Alva Edison invent the movie projector?

Thomas Alva Edison invented and patented the movie protector in 1891, making it possible to take, reproduce and project images. During his lifetime, he received 1,368 patents on his inventions. He ... Read More »
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