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...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.

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Class 222/583 - Including dip well filled by immersion into supply


Subclass of Class 222 - Dispensing
Definition: Dispenser in which the dip well is supported for movement,
No. of patents: 2
Last issue date: 04/10/2007


NumberTitleIssue Date
7201880Sample dispenser
The invention relates to a sample dispenser, for the application of liquid samples on to a sample absorbing area, with a sample dispenser body (1) having at its end a sample pick-up surface (5) bounded by a continuous edge (6), wherein the sampl...
04/10/2007
4482047Container
A container comprising an outer container and an inner container suspended therein by flexible suspension means....
11/13/1984
 
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