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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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3686487
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Patent number 3,686,487
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G01 - MEASURING TESTING
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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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3641565
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Patent number 3,641,565
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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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3631233
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Patent number 3,631,233
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Issue date Dec 28, 1971
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G06 - COMPUTING CALCULATING COUNTING
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3631469
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Patent number 3,631,469
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Issue date Dec 28, 1971
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G01 - MEASURING TESTING
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3594783
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Patent number 3,594,783
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G01 - MEASURING TESTING
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3581306
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Patent number 3,581,306
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H03 - BASIC ELECTRONIC CIRCUITRY
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3579229
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Patent number 3,579,229
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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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G06 - COMPUTING CALCULATING COUNTING
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3566394
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Patent number 3,566,394
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Issue date Feb 23, 1971
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H03 - BASIC ELECTRONIC CIRCUITRY
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3566393
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Patent number 3,566,393
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Issue date Feb 23, 1971
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H03 - BASIC ELECTRONIC CIRCUITRY
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3564536
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Patent number 3,564,536
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G06 - COMPUTING CALCULATING COUNTING
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3564539
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Patent number 3,564,539
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G08 - SIGNALLING
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3555542
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Patent number 3,555,542
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G08 - SIGNALLING
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3553647
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Patent number 3,553,647
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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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3480947
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Patent number 3,480,947
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Issue date Nov 25, 1969
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G05 - CONTROLLING REGULATING
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3480946
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Patent number 3,480,946
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Issue date Nov 25, 1969
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G08 - SIGNALLING
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3465332
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Patent number 3,465,332
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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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3447156
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3436757
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3400391
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G05 - CONTROLLING REGULATING
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3376570
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3375513
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3349230
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3344418
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G06 - COMPUTING CALCULATING COUNTING