Kazuaki Yamamoto

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Otsu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Airfoil blade for impeller fan and manufacturing method thereof
- Patent number 4,971,521
- Issue date Nov 20, 1990
- Matsushita Electric Industrial Co., Ltd.
- Masahiro Atarashi
- B64 - AIRCRAFT AVIATION COSMONAUTICS