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Mammary implant
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Patent number 4,592,755
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Issue date Jun 3, 1986
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Ethyl Corporation
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Harold R. Penton
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Polypivalolactone-polycarbonate blends
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Patent number 4,201,703
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Issue date May 6, 1980
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Ethyl Corporation
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Paul A. Zorzi
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Reinforced polypivalolactone
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Patent number 4,116,922
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Issue date Sep 26, 1978
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Ethyl Corporation
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Edwin D. Hornbaker
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Polypivalolactone molding compounds
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Patent number 4,089,838
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Issue date May 16, 1978
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Ethyl Corporation
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Edwin D. Hornbaker
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Recyclable plastic containers
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Patent number 3,940,001
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Issue date Feb 24, 1976
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Ethyl Corporation
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Albert J. Haefner
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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