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3918035
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G01 - MEASURING TESTING
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3872726
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G01 - MEASURING TESTING
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3790886
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Patent number 3,790,886
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G01 - MEASURING TESTING
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3750141
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H03 - BASIC ELECTRONIC CIRCUITRY
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3737897
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Patent number 3,737,897
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H03 - BASIC ELECTRONIC CIRCUITRY
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3719808
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G05 - CONTROLLING REGULATING
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3714569
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G01 - MEASURING TESTING
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3665305
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Patent number 3,665,305
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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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3624500
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Patent number 3,624,500
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Issue date Nov 30, 1971
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G01 - MEASURING TESTING
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3614398
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Patent number 3,614,398
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G06 - COMPUTING CALCULATING COUNTING
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3611353
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Patent number 3,611,353
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H03 - BASIC ELECTRONIC CIRCUITRY
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3603970
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Patent number 3,603,970
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H03 - BASIC ELECTRONIC CIRCUITRY
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3588884
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Patent number 3,588,884
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H03 - BASIC ELECTRONIC CIRCUITRY
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3587089
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Patent number 3,587,089
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H03 - BASIC ELECTRONIC CIRCUITRY
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3581303
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Patent number 3,581,303
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H03 - BASIC ELECTRONIC CIRCUITRY
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3577140
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Patent number 3,577,140
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H03 - BASIC ELECTRONIC CIRCUITRY
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3573795
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Patent number 3,573,795
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H03 - BASIC ELECTRONIC CIRCUITRY
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3573471
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Patent number 3,573,471
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H03 - BASIC ELECTRONIC CIRCUITRY
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3569960
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Patent number 3,569,960
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H03 - BASIC ELECTRONIC CIRCUITRY
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3569958
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Patent number 3,569,958
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Issue date Mar 9, 1971
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G06 - COMPUTING CALCULATING COUNTING
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3569959
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Patent number 3,569,959
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G05 - CONTROLLING REGULATING
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3564535
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G06 - COMPUTING CALCULATING COUNTING
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3560864
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H03 - BASIC ELECTRONIC CIRCUITRY
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3550116
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H03 - BASIC ELECTRONIC CIRCUITRY
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3544994
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H03 - BASIC ELECTRONIC CIRCUITRY
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3541446
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H03 - BASIC ELECTRONIC CIRCUITRY
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3504362
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G05 - CONTROLLING REGULATING
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3484593
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3483362
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G05 - CONTROLLING REGULATING