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Static dissipative composition
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Patent number 4,981,891
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Issue date Jan 1, 1991
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Armstrong World Industries, Inc.
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Richard E. Felter
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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Static dissipative vinyl sheet and film
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Patent number 4,976,890
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Issue date Dec 11, 1990
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Armstrong World Industries, Inc.
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Richard E. Felter
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Static dissipative composition
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Patent number 4,895,886
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Issue date Jan 23, 1990
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Armstrong World Industries, Inc.
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Richard E. Felter
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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Surface covering articles
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Patent number 4,310,581
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Issue date Jan 12, 1982
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Armstrong Cork Company
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Richard E. Felter
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B44 - DECORATIVE ARTS
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Decorative surface articles
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Patent number 4,303,716
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Issue date Dec 1, 1981
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Armstrong World Industries
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John R. Eshbach
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B44 - DECORATIVE ARTS