David W. Piermattei

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Black Hawk, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Attachment device for keys and other items
- Patent number 6,973,812
- Issue date Dec 13, 2005
- David W. Piermattei
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

Information Patent Application
Key ring holder
- Publication number 20020124611
- Publication date Sep 12, 2002
- David W. Piermattei
- A45 - HAND OR TRAVELLING ARTICLES