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Carbon paper recycling system
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Patent number 4,045,243
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Issue date Aug 30, 1977
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Riverbank Laboratories, Inc.
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Andrew M. Wohlert
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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Fertilizer
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Patent number 4,006,006
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Issue date Feb 1, 1977
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Biocel Corporation
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Ronald A. Penque
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C05 - FERTILISERS MANUFACTURE THEREOF
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3850771
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Patent number 3,850,771
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Issue date Nov 26, 1974
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C05 - FERTILISERS MANUFACTURE THEREOF
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3330487
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Patent number 3,330,487
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Issue date Jul 11, 1967
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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2922588
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Patent number 2,922,588
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Issue date Jan 26, 1960
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE