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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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3787835
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Patent number 3,787,835
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G06 - COMPUTING CALCULATING COUNTING
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3768022
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Patent number 3,768,022
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Issue date Oct 23, 1973
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H03 - BASIC ELECTRONIC CIRCUITRY
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3766545
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Patent number 3,766,545
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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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3629739
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Patent number 3,629,739
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Issue date Dec 21, 1971
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H03 - BASIC ELECTRONIC CIRCUITRY
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3624641
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Patent number 3,624,641
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Issue date Nov 30, 1971
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H03 - BASIC ELECTRONIC CIRCUITRY
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3588462
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Patent number 3,588,462
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Issue date Jun 28, 1971
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G01 - MEASURING TESTING
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3573793
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Patent number 3,573,793
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H03 - BASIC ELECTRONIC CIRCUITRY
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3560963
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Patent number 3,560,963
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Issue date Feb 2, 1971
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H03 - BASIC ELECTRONIC CIRCUITRY
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3555542
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Patent number 3,555,542
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Issue date Jan 12, 1971
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G08 - SIGNALLING
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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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3543150
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Patent number 3,543,150
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G01 - MEASURING TESTING
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3536995
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Patent number 3,536,995
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Issue date Oct 27, 1970
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G01 - MEASURING TESTING
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3537102
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Patent number 3,537,102
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Issue date Oct 27, 1970
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G05 - CONTROLLING REGULATING
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3537099
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Patent number 3,537,099
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Issue date Oct 27, 1970
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G08 - SIGNALLING
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3534360
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Patent number 3,534,360
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H03 - BASIC ELECTRONIC CIRCUITRY
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3509559
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Patent number 3,509,559
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G01 - MEASURING TESTING
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3505671
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Patent number 3,505,671
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H03 - BASIC ELECTRONIC CIRCUITRY
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3500449
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Patent number 3,500,449
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G05 - CONTROLLING REGULATING
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3490016
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Patent number 3,490,016
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Issue date Jan 13, 1970
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G08 - SIGNALLING
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3480947
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Patent number 3,480,947
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G05 - CONTROLLING REGULATING
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3478283
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Patent number 3,478,283
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H03 - BASIC ELECTRONIC CIRCUITRY
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3469257
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Patent number 3,469,257
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G05 - CONTROLLING REGULATING
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3465331
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Patent number 3,465,331
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G05 - CONTROLLING REGULATING
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3461307
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Patent number 3,461,307
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G01 - MEASURING TESTING
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3460122
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Patent number 3,460,122
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H03 - BASIC ELECTRONIC CIRCUITRY
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3456253
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Patent number 3,456,253
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H03 - BASIC ELECTRONIC CIRCUITRY
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3449743
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Patent number 3,449,743
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G01 - MEASURING TESTING
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3447156
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Patent number 3,447,156
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Issue date May 27, 1969
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G01 - MEASURING TESTING