Hisamitsu Maeda

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Moriguchi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Pickup stylus
- Patent number 4,458,346
- Issue date Jul 3, 1984
- Matsushita Electric Industrial Co., Ltd.
- Tsuneo Mitsuyu
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES