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

...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!

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Class 273/237 - Electrical


Subclass of Class 273 - Amusement devices: games
Definition: Game structure in which (1) the surface having a pattern
No. of patents: 327
Last issue date: 05/08/2012


                9  
NumberTitleIssue Date
3984105Game apparatus
An amusement device or toy which includes a vehicle, such as a toy motorcycle, attached by a tethering arm to a generally upright base support in the center of a game board. A path of travel for the vehicle is defined on the game board about the base supp...
10/05/1976
3984109Lighted chess game
A chess game in which the chess pieces of both colors are translucent and carry a lamp; battery, miniature radio receiver and switch responsive to the receiver which couples the lamp for energization by the battery in response to receipt of a control sign...
10/05/1976
3982764Electrical game apparatus
An electrical game apparatus of chance and skill, including educational capabilities, comprising a housing having a display board adapted with a plurality of display lights arranged to provide random symbols of either numerals or letters, wherein the illu...
09/28/1976
3977682Game score reproduction device for indoor board games such as chess and go
A game score reproduction device for indoor games such as chess and go, which enables trainees to study play records of those indoor board games. The reproduction device comprises the following four components: a first component in the form of a recording...
08/31/1976
3973773Game apparatus
Game apparatus which includes a projector and screen in conjunction with a plurality of film transparencies, so that the game "board" or setting is projected on the screen together with the playing pieces, and the progress of the game is determined by the...
08/10/1976
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