Hideo Hagiwara

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Circulating drainage system for sewage pipe installation work
- Patent number 6,012,477
- Issue date Jan 11, 2000
- Komatsu Ltd.
- Hideo Hagiwara
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Circulating drainage system for sewage pipe installation work
- Patent number 5,996,621
- Issue date Dec 7, 1999
- Komatsu Ltd.
- Hideo Hagiwara
- E03 - WATER SUPPLY SEWERAGE