Kenmartin Development, Inc.

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Littleton, NH, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for recovering silver and plastic from used film
- Patent number 4,392,889
- Issue date Jul 12, 1983
- Kenmartin Development, Inc.
- Kenneth M. Grout
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL