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Surface finishing device
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Patent number 4,369,602
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Issue date Jan 25, 1983
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Bertin & Cie
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Charles G. Amicel
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B24 - GRINDING POLISHING
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Hollow fibre apparatus
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Patent number 4,242,203
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Issue date Dec 30, 1980
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Sodip S.A.
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Charles Amicel
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Hollow fibre apparatus
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Patent number 4,179,380
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Issue date Dec 18, 1979
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Sodip S.A.
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Charles Amicel
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Mechanical drying apparatus
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Patent number 4,079,524
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Issue date Mar 21, 1978
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Bertin & Cie
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Charles Gustave Amicel
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE