Mansonville Plastics Limited

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Quebec, CA

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Patents Grantslast 30 patents

Information Patent Grant
Molding apparatus for expanding beads of polystyrene material
- Patent number 4,382,757
- Issue date May 10, 1983
- Mansonville Plastics Limited
- Richard N. Roy
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL