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Tape cassette
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Patent number 4,352,473
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Issue date Oct 5, 1982
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Olympus Optical Co., Ltd.
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Ken Satoh
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G11 - INFORMATION STORAGE
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Tape tracking device
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Patent number 4,349,849
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Issue date Sep 14, 1982
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Olympus Optical Co., Ltd.
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Ken Satoh
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G11 - INFORMATION STORAGE
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Tape cassette drive assembly
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Patent number 4,320,879
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Issue date Mar 23, 1982
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Olympus Optical Co., Ltd.
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Sinichi Saitou
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G11 - INFORMATION STORAGE
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Tape cassette
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Patent number 4,316,590
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Issue date Feb 23, 1982
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Olympus Optical Co., Ltd.
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Ken Satoh
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G11 - INFORMATION STORAGE
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Microphone device
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Patent number 4,293,742
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Issue date Oct 6, 1981
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Olympus Optical Company Limited
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Masanobu Sato
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G11 - INFORMATION STORAGE
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Tape end warning apparatus
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Patent number 4,232,348
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Issue date Nov 4, 1980
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Olympus Optical Co., Ltd.
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Ken Satoh
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G11 - INFORMATION STORAGE
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Tape end warning apparatus
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Patent number 4,199,792
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Issue date Apr 22, 1980
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Olympus Optical Company, Ltd.
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Ken Satoh
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G11 - INFORMATION STORAGE
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Tape end warning apparatus
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Patent number 4,179,716
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Issue date Dec 18, 1979
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Olympus Optical Company, Ltd.
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Ken Satoh
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G11 - INFORMATION STORAGE
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Tape end warning apparatus
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Patent number 4,157,575
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Issue date Jun 5, 1979
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Olympus Optical Co., Ltd.
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Ken Satoh
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G11 - INFORMATION STORAGE
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