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Method of making reusable vacuum bag
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Patent number 5,370,598
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Issue date Dec 6, 1994
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Grumman Aerospace Corporation
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Louis P. Corneau
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Sandbag support
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Patent number 4,723,742
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Issue date Feb 9, 1988
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Leonard Krauss
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3871271
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Patent number 3,871,271
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Issue date Mar 18, 1975
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3111063
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Patent number 3,111,063
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Issue date Nov 19, 1963
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2841055
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Patent number 2,841,055
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Issue date Jul 1, 1958
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2748673
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Patent number 2,748,673
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Issue date Jun 5, 1956
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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1945243
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Patent number 1,945,243
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Issue date Jan 30, 1934
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL