Shinji Hamanaga

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Hamamatsu-shi, JP

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Patents Applicationslast 30 patents

Information Patent Application
BRASS SILENCER
- Publication number 20130047818
- Publication date Feb 28, 2013
- Shinji Hamanaga
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
Mouthpiece of brass instrument
- Publication number 20100011937
- Publication date Jan 21, 2010
- Shinji Hamanaga
- G10 - MUSICAL INSTRUMENTS ACOUSTICS