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Magnetic recording medium
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Issue date Dec 5, 1995
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TDK Corporation
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Magnetic recording medium
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Issue date May 13, 1986
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TDK Electronics Co., Ltd.
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G11 - INFORMATION STORAGE
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Magnetic recording medium
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Issue date May 28, 1985
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TDK Electronics Co., Ltd.
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G11 - INFORMATION STORAGE
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Magnetic recording medium
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Issue date Nov 29, 1983
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TDK Electronics Co., Ltd.
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G11 - INFORMATION STORAGE
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