Larry V. Crabtree

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Kitchener, CA

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Patents Grantslast 30 patents

Information Patent Grant
Method and molding apparatus for molding expanded polystyrene artic...
- Patent number 4,627,946
- Issue date Dec 9, 1986
- Morval-Durofoam Ltd.
- Larry V. Crabtree
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL