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Double super-heterodyne tuner
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Patent number 5,280,639
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Issue date Jan 18, 1994
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Matsushita Electric Industrial Co., Ltd.
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Kazuhiko Kubo
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H03 - BASIC ELECTRONIC CIRCUITRY
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Tuner station selecting apparatus
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Patent number 5,179,729
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Issue date Jan 12, 1993
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Matsushita Electric Industrial Co., Ltd.
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Akira Mishima
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Shielding device
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Patent number 4,861,941
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Issue date Aug 29, 1989
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Matsushita Electric Industrial Co., Inc.
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Kazuhiko Kubo
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Filter apparatus
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Patent number 4,772,862
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Issue date Sep 20, 1988
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Matsushita Electric Industrial Co., Ltd.
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Kazuhiko Kubo
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H03 - BASIC ELECTRONIC CIRCUITRY
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Local oscillation apparatus
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Patent number 4,751,475
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Issue date Jun 14, 1988
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Matsushita Electric Industrial Co., Ltd.
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Kazuhiko Kubo
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H03 - BASIC ELECTRONIC CIRCUITRY
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Frequency conversion apparatus
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Patent number 4,677,692
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Issue date Jun 30, 1987
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Matsushita Electric Industrial Co., Ltd.
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Seiji Sakashita
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H03 - BASIC ELECTRONIC CIRCUITRY