Michael Prenzel

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Quackenbruck, DE

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Patents Grantslast 30 patents

Information Patent Grant
Practice device, use of a practice device and method for checking t...
- Patent number 8,951,139
- Issue date Feb 10, 2015
- Michael Prenzel
- A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

Information Patent Application
PRACTICE DEVICE, USE OF A PRACTICE DEVICE AND METHOD FOR CHECKING T...
- Publication number 20130130821
- Publication date May 23, 2013
- Michael Prenzel
- A63 - SPORTS GAMES AMUSEMENTS