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Digital-analog converter
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Patent number 4,862,170
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Issue date Aug 29, 1989
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Mori; Ryoichi
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Youichi Hashimoto
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H03 - BASIC ELECTRONIC CIRCUITRY
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Digital coder
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Patent number 3,935,569
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Issue date Jan 27, 1976
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Compagnie Industrielle des Telecommunications Cit-Alcatel
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Francois Marcel
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H03 - BASIC ELECTRONIC CIRCUITRY
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3911225
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Patent number 3,911,225
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Issue date Oct 7, 1975
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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3895378
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Patent number 3,895,378
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Issue date Jul 15, 1975
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H03 - BASIC ELECTRONIC CIRCUITRY
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3848195
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Patent number 3,848,195
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Issue date Nov 12, 1974
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H03 - BASIC ELECTRONIC CIRCUITRY
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3842413
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Patent number 3,842,413
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Issue date Oct 15, 1974
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H03 - BASIC ELECTRONIC CIRCUITRY
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3815126
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Patent number 3,815,126
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Issue date Jun 4, 1974
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H03 - BASIC ELECTRONIC CIRCUITRY
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3803591
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Patent number 3,803,591
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Issue date Apr 9, 1974
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H03 - BASIC ELECTRONIC CIRCUITRY
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3798637
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Patent number 3,798,637
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Issue date Mar 19, 1974
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H03 - BASIC ELECTRONIC CIRCUITRY
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3766545
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Patent number 3,766,545
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Issue date Oct 16, 1973
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G01 - MEASURING TESTING
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3750156
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Patent number 3,750,156
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Issue date Jul 31, 1973
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H03 - BASIC ELECTRONIC CIRCUITRY
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3737894
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Patent number 3,737,894
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Issue date Jun 5, 1973
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H03 - BASIC ELECTRONIC CIRCUITRY
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3729732
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Patent number 3,729,732
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H03 - BASIC ELECTRONIC CIRCUITRY
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3705359
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Patent number 3,705,359
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Issue date Dec 5, 1972
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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3683367
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Patent number 3,683,367
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Issue date Aug 8, 1972
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H03 - BASIC ELECTRONIC CIRCUITRY
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3676600
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Patent number 3,676,600
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Issue date Jul 11, 1972
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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3657658
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Patent number 3,657,658
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Issue date Apr 18, 1972
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G05 - CONTROLLING REGULATING
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3656152
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Patent number 3,656,152
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Issue date Apr 11, 1972
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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3653033
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Patent number 3,653,033
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Issue date Mar 28, 1972
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H03 - BASIC ELECTRONIC CIRCUITRY
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3641562
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Patent number 3,641,562
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Issue date Feb 8, 1972
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H03 - BASIC ELECTRONIC CIRCUITRY
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3629739
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Patent number 3,629,739
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Issue date Dec 21, 1971
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H03 - BASIC ELECTRONIC CIRCUITRY
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3624414
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Patent number 3,624,414
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Issue date Nov 30, 1971
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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3613067
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Patent number 3,613,067
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Issue date Oct 12, 1971
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H03 - BASIC ELECTRONIC CIRCUITRY
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3611208
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Patent number 3,611,208
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Issue date Oct 5, 1971
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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3597693
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Patent number 3,597,693
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Issue date Aug 3, 1971
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H03 - BASIC ELECTRONIC CIRCUITRY
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3594780
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Patent number 3,594,780
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Issue date Jul 20, 1971
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H03 - BASIC ELECTRONIC CIRCUITRY
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3594765
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Patent number 3,594,765
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Issue date Jul 20, 1971
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H04 - ELECTRIC COMMUNICATION TECHNIQUE