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Disc player
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Patent number 4,783,777
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Issue date Nov 8, 1988
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U.S. Philips Corporation
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Eduard Camerik
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G11 - INFORMATION STORAGE
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Optical-disc apparatus
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Patent number 4,768,185
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Issue date Aug 30, 1988
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U.S. Philips Corporation
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Eduard Camerik
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G11 - INFORMATION STORAGE
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Optical disc player
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Patent number 4,661,940
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Issue date Apr 28, 1987
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U.S. Philips Corporation
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Eduard Camerik
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G11 - INFORMATION STORAGE
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Optical device
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Patent number 4,490,011
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Issue date Dec 25, 1984
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U.S. Philips Corporation
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Roger J. E. Houbregs
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G11 - INFORMATION STORAGE
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Optical focussing device
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Patent number 4,252,412
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Issue date Feb 24, 1981
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U.S. Philips Corporation
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Eduard Camerik
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G02 - OPTICS
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Video disc player
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Patent number 4,135,721
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Issue date Jan 23, 1979
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U.S. Philips Corporation
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Eduard Camerik
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G11 - INFORMATION STORAGE
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