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Martin L. Zelenz
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Manlius, NY, US
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last 30 patents
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Patent Grant
Television signal scrambling/descrambling system
Patent number
4,590,519
Issue date
May 20, 1986
Regency Electronics, Inc.
Martin L. Zelenz
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Grant
CATV Subscription service control device and attenuator therefor
Patent number
4,222,066
Issue date
Sep 9, 1980
North American Philips Corporation
Martin L. Zelenz
H04 - ELECTRIC COMMUNICATION TECHNIQUE