George F. Smith

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Marion, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Variable capacity all-plastic drum
- Patent number 4,201,306
- Issue date May 6, 1980
- Greif Bros. Corporation
- Robert A. Dubois
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method of blow molding an all plastic drum and compression molding...
- Patent number 4,170,623
- Issue date Oct 9, 1979
- Greif Bros. Corporation
- Robert A. Dubois
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL