Shoji Iriyama

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Kariya, JP

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Patents Grantslast 30 patents

Information Patent Grant
Manufacturing apparatus of a corrugated fin and method of manufactu...
- Patent number 5,819,575
- Issue date Oct 13, 1998
- Denso Corporation
- Hisashi Kobayashi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...