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Norman E. Heckman
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Concord, MA, US
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last 30 patents
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Patent Grant
Adaptive echo cancellation and equalization system signal processor...
Patent number
4,760,596
Issue date
Jul 26, 1988
GTE Laboratories Incorporated
Jagannath P. Agrawal
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Grant
Arithmetic logic apparatus
Patent number
4,157,589
Issue date
Jun 5, 1979
GTE Laboratories Incorporated
Christopher W. Kapral
G06 - COMPUTING CALCULATING COUNTING