Sadao Hamada

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Patents Grantslast 30 patents

Information Patent Grant
Putter alignment guide bar
- Patent number 9,873,027
- Issue date Jan 23, 2018
- Sadao Hamada
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Putter alignment guide bar
- Patent number 9,427,651
- Issue date Aug 30, 2016
- Sadao Hamada
- A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

Information Patent Application
PUTTER ALIGNMENT GUIDE BAR
- Publication number 20150343295
- Publication date Dec 3, 2015
- Sadao Hamada
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
PUTTER ALIGNMENT GUIDE BAR
- Publication number 20150343275
- Publication date Dec 3, 2015
- Sadao Hamada
- A63 - SPORTS GAMES AMUSEMENTS