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3810151
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H03 - BASIC ELECTRONIC CIRCUITRY
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3754233
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Patent number 3,754,233
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H03 - BASIC ELECTRONIC CIRCUITRY
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3754235
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Patent number 3,754,235
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Issue date Aug 21, 1973
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H03 - BASIC ELECTRONIC CIRCUITRY
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3707713
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Patent number 3,707,713
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H03 - BASIC ELECTRONIC CIRCUITRY
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3683367
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Patent number 3,683,367
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H03 - BASIC ELECTRONIC CIRCUITRY
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3611208
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Patent number 3,611,208
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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3581116
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Patent number 3,581,116
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H03 - BASIC ELECTRONIC CIRCUITRY
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3576575
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Patent number 3,576,575
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H03 - BASIC ELECTRONIC CIRCUITRY
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3573797
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Patent number 3,573,797
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G06 - COMPUTING CALCULATING COUNTING
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3555540
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Patent number 3,555,540
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3540035
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Patent number 3,540,035
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H03 - BASIC ELECTRONIC CIRCUITRY
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3509557
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H03 - BASIC ELECTRONIC CIRCUITRY
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3496562
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H03 - BASIC ELECTRONIC CIRCUITRY
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3484777
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3399386
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H03 - BASIC ELECTRONIC CIRCUITRY
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3398241
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3354449
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H03 - BASIC ELECTRONIC CIRCUITRY
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3178564
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3160803
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G05 - CONTROLLING REGULATING