Akron, OH, US
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Patent Grant
The Firestone Tire & Rubber Company
Robert A. Elefritz
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Patent Grant
The Firestone Tire & Rubber Company
Charles R. Johnson
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Grant
The French Oil Mill Machinery Company
Dean K. Bredeson
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
