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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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3918035
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Patent number 3,918,035
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Issue date Nov 4, 1975
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G01 - MEASURING TESTING
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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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3896431
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Patent number 3,896,431
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Issue date Jul 22, 1975
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H03 - BASIC ELECTRONIC CIRCUITRY
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3895376
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Patent number 3,895,376
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Issue date Jul 15, 1975
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H03 - BASIC ELECTRONIC CIRCUITRY
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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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3889254
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Patent number 3,889,254
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Issue date Jun 10, 1975
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G01 - MEASURING TESTING
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3872726
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Patent number 3,872,726
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Issue date Mar 25, 1975
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G01 - MEASURING TESTING
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3872288
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Patent number 3,872,288
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Issue date Mar 18, 1975
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G01 - MEASURING TESTING
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3865305
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Patent number 3,865,305
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Issue date Feb 11, 1975
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G01 - MEASURING TESTING
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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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3843872
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Patent number 3,843,872
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Issue date Oct 22, 1974
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G06 - COMPUTING CALCULATING COUNTING
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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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3840807
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Patent number 3,840,807
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Issue date Oct 8, 1974
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H03 - BASIC ELECTRONIC CIRCUITRY
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3838413
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Patent number 3,838,413
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Issue date Sep 24, 1974
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G06 - COMPUTING CALCULATING COUNTING
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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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3812481
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Patent number 3,812,481
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Issue date May 21, 1974
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G01 - MEASURING TESTING
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3809864
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Patent number 3,809,864
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Issue date May 7, 1974
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G01 - MEASURING TESTING
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3805149
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Patent number 3,805,149
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Issue date Apr 16, 1974
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G01 - MEASURING TESTING
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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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3792352
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Patent number 3,792,352
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Issue date Feb 12, 1974
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H03 - BASIC ELECTRONIC CIRCUITRY
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3790886
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Patent number 3,790,886
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Issue date Feb 5, 1974
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G01 - MEASURING TESTING
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3774018
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Patent number 3,774,018
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Issue date Nov 20, 1973
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H03 - BASIC ELECTRONIC CIRCUITRY