U.S. patents available from 1976 to present.
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Icon_funbox Did You Know...

...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!

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Class 400/640 - With cooperating scale


Subclass of Class 400 - Typewriting machines
Definition: Subject matter wherein the roller couple feed means is associated
No. of patents: 3
Last issue date: 12/06/2005


NumberTitleIssue Date
6972404Optical control device having a controller that controls track movement of a driven member through a drive unit with reflecting regions
An optical control device includes a drive member formed with a plurality of reflecting regions along a second track and movable along the second track for driving a driven member to move along a first track. An optical unit emits a light beam that is incident upon ...
12/06/2005
6685370Recording member feeding device with detecting means for improved precision and image forming apparatus containing same
A recording member feeding device feeds a recording member such as a sheet in an image recording apparatus such as a copying machine. The recording member feeding device has a feeding rotary unit, a driving unit for driving the feeding rotary unit, and a ...
02/03/2004
4525089Document feed-in device
A document feed-in device for an electronic typewriter comprises a lower guide member for guiding a document towards a typing line on a platen cylinder and a plate or bar member for guiding the document beyond the typing line. The plate or bar member is c...
06/25/1985
 
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