Product Technologies, Inc. c/o Pen-Ro Group

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Pittsfield, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for preventing dirt and moisture from entering...
- Patent number 5,105,571
- Issue date Apr 21, 1992
- Product Technologies, Inc. c/o Pen-Ro Group
- Anthony E. Kinchin
- F41 - WEAPONS