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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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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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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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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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3829853
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Patent number 3,829,853
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Issue date Aug 13, 1974
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H03 - BASIC ELECTRONIC CIRCUITRY
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3816825
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Patent number 3,816,825
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Issue date Jun 11, 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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3789389
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Patent number 3,789,389
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Issue date Jan 29, 1974
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H03 - BASIC ELECTRONIC CIRCUITRY
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3774195
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Patent number 3,774,195
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Issue date Nov 20, 1973
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G02 - OPTICS
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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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3745559
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Patent number 3,745,559
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Issue date Jul 10, 1973
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H03 - BASIC ELECTRONIC CIRCUITRY
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3742489
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Patent number 3,742,489
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Issue date Jun 26, 1973
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H03 - BASIC ELECTRONIC CIRCUITRY
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3739375
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Patent number 3,739,375
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Issue date Jun 12, 1973
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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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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3735390
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Patent number 3,735,390
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Issue date May 22, 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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Issue date Apr 24, 1973
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H03 - BASIC ELECTRONIC CIRCUITRY
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3714569
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Patent number 3,714,569
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Issue date Jan 30, 1973
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G01 - MEASURING TESTING
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3701148
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Patent number 3,701,148
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Issue date Oct 24, 1972
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H03 - BASIC ELECTRONIC CIRCUITRY
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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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3653029
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Patent number 3,653,029
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Issue date Mar 28, 1972
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H03 - BASIC ELECTRONIC CIRCUITRY
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3644924
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Patent number 3,644,924
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Issue date Feb 22, 1972
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H03 - BASIC ELECTRONIC CIRCUITRY