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Write protect switch device
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Patent number 4,760,473
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Issue date Jul 26, 1988
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Alps Electric Co., Ltd.
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Makito Takikawa
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G11 - INFORMATION STORAGE
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Disk clamping mechanism
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Patent number 4,747,002
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Issue date May 24, 1988
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Alps Electric Co., Ltd.
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Makito Takikawa
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G11 - INFORMATION STORAGE
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Magnetic disk drive
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Patent number 4,654,734
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Issue date Mar 31, 1987
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Alps Electric Co., Ltd.
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Motohiro Shimaoka
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G11 - INFORMATION STORAGE
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Flexible magnetic disk device
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Patent number 4,437,132
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Issue date Mar 13, 1984
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Alps Electric Co., Ltd.
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Motohiro Shimaoka
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G11 - INFORMATION STORAGE
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