Hokkai Koki Co., Ltd.

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Hokkaido, JP

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Patents Grantslast 30 patents

Information Patent Grant
Corrosion resistant PC steel stranded cable and process of and appa...
- Patent number 5,263,307
- Issue date Nov 23, 1993
- Hokkai Koki Co., Ltd.
- Takeshi Hasui
- D07 - ROPES CABLES OTHER THAN ELECTRIC