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Acoustic apparatus
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Patent number 4,408,095
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Issue date Oct 4, 1983
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Clarion Co., Ltd.
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Shoji Ariga
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Packaging case
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Patent number 4,294,354
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Issue date Oct 13, 1981
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Clarion Co., Ltd.
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Shoji Ariga
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Panel assembly
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Patent number 4,238,139
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Issue date Dec 9, 1980
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Clarion Co., Ltd.
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Kazuo Suzuki
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H04 - ELECTRIC COMMUNICATION TECHNIQUE