Daniel J. Heffron

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Leon, IA, US

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Patents Grantslast 30 patents

Information Patent Grant
Football training device system
- Patent number 8,439,772
- Issue date May 14, 2013
- Daniel J. Heffron
- A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

Information Patent Application
FOOTBALL TRAINING DEVICE SYSTEM
- Publication number 20110319202
- Publication date Dec 29, 2011
- Daniel J. Heffron
- A63 - SPORTS GAMES AMUSEMENTS