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Vladimir Zworykin, television pioneer ; Talking about an invention in which he played a critical role.

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Number of patents: 1
Last date: February 27, 2007

NumberTitleIssue Date
7182694Play apparatus
A play facility (1) includes a rotation shaft (25) erected on a floor inside the play facility, the rotation shaft being rotatable (25) around its axis; a brush-like decorative object (33) attached to a circumferential periphery of the ro...
02/27/2007
 
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