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Ratio discriminator
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Patent number 4,634,991
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Issue date Jan 6, 1987
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SGS-ATES Componenti Elettronici S.p.A.
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Ettore Mastrojeni
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H03 - BASIC ELECTRONIC CIRCUITRY
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Bridge circuit demodulator
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Patent number 4,618,829
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Issue date Oct 21, 1986
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U.S. Philips Corporation
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Rudolf Hasler
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H03 - BASIC ELECTRONIC CIRCUITRY
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FM Detecting circuit
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Patent number 4,342,000
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Issue date Jul 27, 1982
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Nippon Gakki Seizo Kabushiki Kaisha
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Minoru Ogita
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H03 - BASIC ELECTRONIC CIRCUITRY
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3872393
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Patent number 3,872,393
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Issue date Mar 18, 1975
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H03 - BASIC ELECTRONIC CIRCUITRY
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3622897
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Patent number 3,622,897
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Issue date Nov 23, 1971
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H03 - BASIC ELECTRONIC CIRCUITRY
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3588721
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Patent number 3,588,721
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Issue date Jun 28, 1971
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H03 - BASIC ELECTRONIC CIRCUITRY
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3569846
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Patent number 3,569,846
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Issue date Mar 9, 1971
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H03 - BASIC ELECTRONIC CIRCUITRY
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3525943
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Patent number 3,525,943
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Issue date Aug 25, 1970
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H03 - BASIC ELECTRONIC CIRCUITRY
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3518561
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Patent number 3,518,561
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Issue date Jun 30, 1970
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H03 - BASIC ELECTRONIC CIRCUITRY
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3505610
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Patent number 3,505,610
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Issue date Apr 7, 1970
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H03 - BASIC ELECTRONIC CIRCUITRY
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3495178
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Patent number 3,495,178
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Issue date Feb 10, 1970
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H03 - BASIC ELECTRONIC CIRCUITRY
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3462694
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Patent number 3,462,694
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Issue date Aug 19, 1969
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H03 - BASIC ELECTRONIC CIRCUITRY
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3428906
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Patent number 3,428,906
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Issue date Feb 18, 1969
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H03 - BASIC ELECTRONIC CIRCUITRY
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3391345
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Patent number 3,391,345
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Issue date Jul 2, 1968
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H03 - BASIC ELECTRONIC CIRCUITRY
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3383607
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Patent number 3,383,607
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Issue date May 14, 1968
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H03 - BASIC ELECTRONIC CIRCUITRY
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3320540
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Patent number 3,320,540
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Issue date May 16, 1967
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H03 - BASIC ELECTRONIC CIRCUITRY
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3319154
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Patent number 3,319,154
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Issue date May 9, 1967
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H03 - BASIC ELECTRONIC CIRCUITRY
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3281701
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Patent number 3,281,701
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Issue date Oct 25, 1966
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H03 - BASIC ELECTRONIC CIRCUITRY
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3205450
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Patent number 3,205,450
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Issue date Sep 7, 1965
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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3130372
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Patent number 3,130,372
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Issue date Apr 21, 1964
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H03 - BASIC ELECTRONIC CIRCUITRY
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3122708
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Patent number 3,122,708
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Issue date Feb 25, 1964
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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3076940
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Patent number 3,076,940
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Issue date Feb 5, 1963
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H03 - BASIC ELECTRONIC CIRCUITRY
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3067376
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Patent number 3,067,376
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Issue date Dec 4, 1962
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G01 - MEASURING TESTING
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3047813
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Patent number 3,047,813
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Issue date Jul 31, 1962
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H03 - BASIC ELECTRONIC CIRCUITRY
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3024421
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Patent number 3,024,421
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Issue date Mar 6, 1962
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H03 - BASIC ELECTRONIC CIRCUITRY
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3010066
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Patent number 3,010,066
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Issue date Nov 21, 1961
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G01 - MEASURING TESTING
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2961613
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Patent number 2,961,613
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Issue date Nov 22, 1960
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H03 - BASIC ELECTRONIC CIRCUITRY
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2930892
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Patent number 2,930,892
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Issue date Mar 29, 1960
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H03 - BASIC ELECTRONIC CIRCUITRY