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Mini disc player
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Patent number 5,583,834
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Issue date Dec 10, 1996
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Sony Corporation
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Tokio Kanada
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G11 - INFORMATION STORAGE
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Record player
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Patent number 4,118,037
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Issue date Oct 3, 1978
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Mun-Hay Ngai
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G11 - INFORMATION STORAGE
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3480282
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Patent number 3,480,282
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Issue date Nov 25, 1969
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G11 - INFORMATION STORAGE
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3281153
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Patent number 3,281,153
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Issue date Oct 25, 1966
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G11 - INFORMATION STORAGE
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3079159
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Patent number 3,079,159
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Issue date Feb 26, 1963
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G11 - INFORMATION STORAGE
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2840642
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Patent number 2,840,642
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Issue date Jun 24, 1958
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G11 - INFORMATION STORAGE
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2670210
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Patent number 2,670,210
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Issue date Feb 23, 1954
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G11 - INFORMATION STORAGE
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2552757
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Patent number 2,552,757
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Issue date May 15, 1951
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G11 - INFORMATION STORAGE