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Frank Yama
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North Massapequa, NY, US
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last 30 patents
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Patent Grant
Miniature sounder with double tuned cavity
Patent number
4,413,253
Issue date
Nov 1, 1983
Alan Hofer
G08 - SIGNALLING
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Patent Grant
Miniature sounder with multi-part tuned cavities
Patent number
4,409,588
Issue date
Oct 11, 1983
Pickering & Company, Inc.
Alan Hofer
G08 - SIGNALLING
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Patent Grant
Miniature buzzer
Patent number
4,251,807
Issue date
Feb 17, 1981
Pickering & Company
Alan Hofer
G08 - SIGNALLING