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3838413
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Patent number 3,838,413
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Issue date Sep 24, 1974
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G06 - COMPUTING CALCULATING COUNTING
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3829785
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Patent number 3,829,785
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G01 - MEASURING TESTING
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3805149
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Patent number 3,805,149
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Issue date Apr 16, 1974
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G01 - MEASURING TESTING
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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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3710374
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Patent number 3,710,374
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H03 - BASIC ELECTRONIC CIRCUITRY
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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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3649826
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Patent number 3,649,826
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G06 - COMPUTING CALCULATING COUNTING
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3641562
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Patent number 3,641,562
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H03 - BASIC ELECTRONIC CIRCUITRY
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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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G01 - MEASURING TESTING
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3597693
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Patent number 3,597,693
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H03 - BASIC ELECTRONIC CIRCUITRY
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3594780
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Patent number 3,594,780
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H03 - BASIC ELECTRONIC CIRCUITRY
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3594765
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Patent number 3,594,765
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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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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3581304
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Patent number 3,581,304
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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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3579232
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Patent number 3,579,232
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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3577085
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Patent number 3,577,085
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G06 - COMPUTING CALCULATING COUNTING
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3573443
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Patent number 3,573,443
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G06 - COMPUTING CALCULATING COUNTING
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3573471
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H03 - BASIC ELECTRONIC CIRCUITRY
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3571725
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Patent number 3,571,725
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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3571757
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Patent number 3,571,757
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H03 - BASIC ELECTRONIC CIRCUITRY
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3571510
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Patent number 3,571,510
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3569952
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Patent number 3,569,952
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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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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3568182
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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3566397
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3566396
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H03 - BASIC ELECTRONIC CIRCUITRY
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3560962
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Patent number 3,560,962
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3558918
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Patent number 3,558,918
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G11 - INFORMATION STORAGE