Inventor
TANSKY JOHN L
US4 patents
Patents
4 patentsUS4928299AMay 22, 1990
Coin operated telephone operation monitoring switch mounting arrangement
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US5949863ASep 7, 1999
Coin operated telephone auditor
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US5896446AApr 20, 1999
Coin operated telephone auditor
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US5915517AJun 29, 1999
Coin diverter
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