Lancaster, PA, US
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Patent Grant
Armstrong World Industries, Inc.
Edwin J. Quinn
428 - Stock material or miscellaneous articles
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Patent Grant
Armstrong World Industries, Inc.
Edwin J. Quinn
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Grant
Armstrong World Industries, Inc.
Stephen E. Becker
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Grant
Armstrong World Industries, Inc.
Stephen E. Becker
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Grant
Armstrong World Industries, Inc.
Thomas C. Creighton
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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Patent Grant
Armstrong World Industries, Inc.
Richard M. Ringer
B44 - DECORATIVE ARTS
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Patent Grant
Armstrong Cork Company
Walter J. Lewicki
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Grant
Armstrong Cork Company
Walter J. Lewicki
B44 - DECORATIVE ARTS
