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Dielectric ceramic composition
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Patent number 5,256,639
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Issue date Oct 26, 1993
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Matsushita Electric Industrial Co., Ltd.
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Takuya Fujimaru
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Flat type dielectric filter
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Patent number 5,248,949
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Issue date Sep 28, 1993
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Matsushita Electric Industrial Co., Ltd.
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Kazuhiro Eguchi
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H01 - BASIC ELECTRIC ELEMENTS
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Ceramic burner plate
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Patent number 4,504,218
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Issue date Mar 12, 1985
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Matsushita Electric Industrial Co., Ltd.
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Toshihiro Mihara
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES