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...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 33/558.1 - Rotatable nut


Subclass of Class 33 - Geometrical instruments
Definition: Subject matter wherein an internally threaded member is
No. of patents: 0


 
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