Kunito Nunomura

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Shimonoseki, JA

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Patents Grantslast 30 patents

Information Patent Grant
Process for etching inner surface of pipe or tube
- Patent number 4,056,428
- Issue date Nov 1, 1977
- Kobe Steel, Ltd.
- Nobuhiko Harada
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...