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3896431
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Issue date Jul 22, 1975
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H03 - BASIC ELECTRONIC CIRCUITRY
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3895376
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Patent number 3,895,376
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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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G01 - MEASURING TESTING
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3872726
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G01 - MEASURING TESTING
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3843872
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Patent number 3,843,872
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G06 - COMPUTING CALCULATING COUNTING
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3840807
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Patent number 3,840,807
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H03 - BASIC ELECTRONIC CIRCUITRY
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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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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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3729733
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G06 - COMPUTING CALCULATING COUNTING
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3725903
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Patent number 3,725,903
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H03 - BASIC ELECTRONIC CIRCUITRY
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3719807
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Patent number 3,719,807
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H03 - BASIC ELECTRONIC CIRCUITRY
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3711851
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Patent number 3,711,851
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H03 - BASIC ELECTRONIC CIRCUITRY
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3709309
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Patent number 3,709,309
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G01 - MEASURING TESTING
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3710374
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Patent number 3,710,374
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H03 - BASIC ELECTRONIC CIRCUITRY
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3710248
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Patent number 3,710,248
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G01 - MEASURING TESTING
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3681577
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Patent number 3,681,577
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G01 - MEASURING TESTING
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3678502
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H03 - BASIC ELECTRONIC CIRCUITRY
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3654560
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G06 - COMPUTING CALCULATING COUNTING
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3649826
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G06 - COMPUTING CALCULATING COUNTING
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3634852
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H03 - BASIC ELECTRONIC CIRCUITRY
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3633201
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G01 - MEASURING TESTING
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3624500
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Patent number 3,624,500
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G01 - MEASURING TESTING
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3617885
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H03 - BASIC ELECTRONIC CIRCUITRY
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3582777
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G01 - MEASURING TESTING
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3582947
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Patent number 3,582,947
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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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3566397
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Patent number 3,566,397
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H03 - BASIC ELECTRONIC CIRCUITRY
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3566265
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Patent number 3,566,265
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Issue date Feb 23, 1971
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H03 - BASIC ELECTRONIC CIRCUITRY