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Oscillator circuits
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Patent number 4,001,723
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Issue date Jan 4, 1977
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RCA Corporation
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Abel Ching Nam Sheng
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H03 - BASIC ELECTRONIC CIRCUITRY
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Control circuit
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Patent number 3,978,352
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Issue date Aug 31, 1976
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Ronald N. Rose
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H03 - BASIC ELECTRONIC CIRCUITRY
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3916343
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Patent number 3,916,343
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Issue date Oct 28, 1975
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H03 - BASIC ELECTRONIC CIRCUITRY
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3911377
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Patent number 3,911,377
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Issue date Oct 7, 1975
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H03 - BASIC ELECTRONIC CIRCUITRY
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3887884
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Patent number 3,887,884
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Issue date Jun 3, 1975
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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3882421
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Patent number 3,882,421
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Issue date May 6, 1975
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H03 - BASIC ELECTRONIC CIRCUITRY
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3872405
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Patent number 3,872,405
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Issue date Mar 18, 1975
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H03 - BASIC ELECTRONIC CIRCUITRY
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3817052
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Patent number 3,817,052
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Issue date Jun 18, 1974
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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3777184
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Patent number 3,777,184
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Issue date Dec 4, 1973
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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3732468
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Patent number 3,732,468
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Issue date May 8, 1973
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H03 - BASIC ELECTRONIC CIRCUITRY
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3694669
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Patent number 3,694,669
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Issue date Sep 26, 1972
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H03 - BASIC ELECTRONIC CIRCUITRY
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3633128
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Patent number 3,633,128
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Issue date Jan 4, 1972
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H03 - BASIC ELECTRONIC CIRCUITRY
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3593197
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Patent number 3,593,197
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Issue date Jul 13, 1971
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H03 - BASIC ELECTRONIC CIRCUITRY
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3558996
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Patent number 3,558,996
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Issue date Jan 26, 1971
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H03 - BASIC ELECTRONIC CIRCUITRY
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3336503
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Patent number 3,336,503
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Issue date Aug 15, 1967
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER