Robert Earl Keller

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Spring Valley, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Permanent ink marker for re-identifying wire
- Patent number 6,582,142
- Issue date Jun 24, 2003
- Robert Earl Keller
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

Information Patent Application
Permanent ink marker for re-identifying wire
- Publication number 20020100138
- Publication date Aug 1, 2002
- Robert Earl Keller
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES