Friedreich O. Heimers

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Spring Valley, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Ball retrieval device for ball games, particularly for tennis rackets
- Patent number 7,048,653
- Issue date May 23, 2006
- Friedreich O. Heimers
- A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Ball retrieval device for ball games, particularly for tennis rackets
- Publication number 20040127307
- Publication date Jul 1, 2004
- Friedreich O. Heimers
- A63 - SPORTS GAMES AMUSEMENTS