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Optical recording disc recycling method
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Patent number 5,972,159
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Issue date Oct 26, 1999
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Sony Corporation
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Masaru Uryu
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Method and device for peeling a film
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Patent number 5,496,432
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Issue date Mar 5, 1996
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Somar Corporation
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Shigeo Sumi
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Apparatus for stripping a cover sheet
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Patent number 4,285,759
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Issue date Aug 25, 1981
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E. I. Du Pont de Nemours and Company
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Richard B. Allen
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3469848
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Patent number 3,469,848
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Issue date Sep 30, 1969
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B32 - LAYERED PRODUCTS
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856613
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Patent number 856,613
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Issue date Jun 11, 1907
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL