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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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3754235
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Patent number 3,754,235
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Issue date Aug 21, 1973
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H03 - BASIC ELECTRONIC CIRCUITRY
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3745560
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Patent number 3,745,560
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Issue date Jul 10, 1973
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G01 - MEASURING TESTING
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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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3727074
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Patent number 3,727,074
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Issue date Apr 10, 1973
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G06 - COMPUTING CALCULATING COUNTING
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3719808
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Patent number 3,719,808
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Issue date Mar 6, 1973
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G05 - CONTROLLING REGULATING
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3707713
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Patent number 3,707,713
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Issue date Dec 26, 1972
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H03 - BASIC ELECTRONIC CIRCUITRY
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3686487
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Patent number 3,686,487
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Issue date Aug 22, 1972
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G01 - MEASURING TESTING
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3655954
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Patent number 3,655,954
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Issue date Apr 11, 1972
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G06 - COMPUTING CALCULATING COUNTING
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3641566
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Patent number 3,641,566
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Issue date Feb 8, 1972
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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3633202
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Patent number 3,633,202
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Issue date Jan 4, 1972
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H03 - BASIC ELECTRONIC CIRCUITRY
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3624639
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Patent number 3,624,639
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Issue date Nov 30, 1971
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H03 - BASIC ELECTRONIC CIRCUITRY
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3603978
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Patent number 3,603,978
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Issue date Sep 7, 1971
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H03 - BASIC ELECTRONIC CIRCUITRY
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3594783
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Patent number 3,594,783
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Issue date Jul 20, 1971
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G01 - MEASURING TESTING
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3582943
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Patent number 3,582,943
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Issue date Jun 1, 1971
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H03 - BASIC ELECTRONIC CIRCUITRY
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3581116
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Patent number 3,581,116
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Issue date May 25, 1971
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H03 - BASIC ELECTRONIC CIRCUITRY
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3579227
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Patent number 3,579,227
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G05 - CONTROLLING REGULATING
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3577085
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Patent number 3,577,085
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Issue date May 4, 1971
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G06 - COMPUTING CALCULATING COUNTING
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3568182
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Patent number 3,568,182
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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3566240
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Patent number 3,566,240
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Issue date Feb 23, 1971
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G05 - CONTROLLING REGULATING
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3564537
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Patent number 3,564,537
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Issue date Feb 16, 1971
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H03 - BASIC ELECTRONIC CIRCUITRY
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3564533
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Patent number 3,564,533
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Issue date Feb 16, 1971
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G06 - COMPUTING CALCULATING COUNTING
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3553647
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Patent number 3,553,647
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Issue date Jan 5, 1971
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H03 - BASIC ELECTRONIC CIRCUITRY
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3553443
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Patent number 3,553,443
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Issue date Jan 5, 1971
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G06 - COMPUTING CALCULATING COUNTING
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3553682
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Patent number 3,553,682
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Issue date Jan 5, 1971
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H03 - BASIC ELECTRONIC CIRCUITRY
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3553684
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Patent number 3,553,684
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Issue date Jan 5, 1971
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G05 - CONTROLLING REGULATING
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3548169
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Patent number 3,548,169
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Issue date Dec 15, 1970
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G05 - CONTROLLING REGULATING
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3543375
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Patent number 3,543,375
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3540036
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Patent number 3,540,036
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Issue date Nov 10, 1970
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H03 - BASIC ELECTRONIC CIRCUITRY
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3540037
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Patent number 3,540,037
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Issue date Nov 10, 1970
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H03 - BASIC ELECTRONIC CIRCUITRY