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(Q2105686)
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Positive Infinitely Variable
1924 patent and trademark
PIV
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instance of
trademark
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image
US2068784-Figure 1.png
1,180 × 868; 23 KB
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US2068784-Figure 2.png
1,456 × 1,184; 44 KB
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discoverer or inventor
unknown value
subject named as
Geoffrey Joseph Abott
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Identifiers
Google Knowledge Graph ID
/g/122qxpn4
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patent number
US2068784
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