J & J Tool and Mold Ltd.

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Toronto, CA

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Patents Grantslast 30 patents

Information Patent Grant
Mould for closure caps with intermittent threads undercuts or hold-...
- Patent number 4,019,711
- Issue date Apr 26, 1977
- J & J Tool and Mold Ltd.
- Jack Altenhof
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL