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Tenter clip cleaning method and apparatus
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Patent number 5,771,547
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Issue date Jun 30, 1998
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E. I. Du Pont de Nemours and Company
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William John Hommes
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Film bead heating for simultaneous stretching
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Patent number 5,753,172
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Issue date May 19, 1998
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E. I. Du Pont de Nemours and Company
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Albert White Forrest
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Expandable mandrel
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Patent number 5,314,135
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Issue date May 24, 1994
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E. I. Du Pont de Nemours and Company
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Albert W. Forrest
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Apparatus for winding film
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Patent number 4,850,545
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Issue date Jul 25, 1989
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E. I. Du Pont de Nemours and Company
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Raymond M. Ballard
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Device for biaxially stretching film
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Patent number 4,679,283
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Issue date Jul 14, 1987
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E. I. Du Pont de Nemours and Company
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Albert W. Forrest
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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