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Ester lubricants
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Patent number 4,440,660
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Issue date Apr 3, 1984
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Internationale Octrooi Maatschappij "Octropa" B.V.
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Gerrit A. van Rijs
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C07 - ORGANIC CHEMISTRY
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Polyamides
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Patent number 4,247,426
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Issue date Jan 27, 1981
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Emery Industries, Inc.
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Adrien G. Hinze
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Polyamides
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Patent number 4,191,669
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Issue date Mar 4, 1980
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Emery Industries, Inc.
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Adrien G. Hinze
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...