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Digital to analogue convertors
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Patent number 5,105,193
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Issue date Apr 14, 1992
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Marconi Electronic Devices Limited
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Alexander W. Vogt
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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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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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3829785
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Patent number 3,829,785
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Issue date Aug 13, 1974
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G01 - MEASURING TESTING
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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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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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3754233
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Patent number 3,754,233
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Issue date Aug 21, 1973
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H03 - BASIC ELECTRONIC CIRCUITRY
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3742487
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Patent number 3,742,487
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Issue date Jun 26, 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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3737893
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Patent number 3,737,893
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Issue date Jun 5, 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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3713023
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Patent number 3,713,023
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H03 - BASIC ELECTRONIC CIRCUITRY
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3707713
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Patent number 3,707,713
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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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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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3678502
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Patent number 3,678,502
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Issue date Jul 18, 1972
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H03 - BASIC ELECTRONIC CIRCUITRY
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3668693
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Patent number 3,668,693
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H03 - BASIC ELECTRONIC CIRCUITRY
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3665457
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Patent number 3,665,457
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Issue date May 23, 1972
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H03 - BASIC ELECTRONIC CIRCUITRY
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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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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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3648276
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Patent number 3,648,276
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Issue date Mar 7, 1972
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G01 - MEASURING TESTING