John Edwin Jeffers

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King of Prussia, PA, US

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Patents Applicationslast 30 patents

Information Patent Application
Insulation board with weather and puncture resistant facing and met...
- Publication number 20060078699
- Publication date Apr 13, 2006
- Kurt O. Mankell
- F24 - HEATING RANGES VENTILATING
Information Patent Application
Vapor retarding film and folding thereof
- Publication number 20050249908
- Publication date Nov 10, 2005
- Richard S. Duncan
- B32 - LAYERED PRODUCTS