Membership
Tour
Register
Log in
Kabushiki Kaisha Kematsu Seisakusho
Follow
Organization
JP
Organizations
Overview
Industries
People
People
Information
Transactions
Events
Impact
Please log in for detailed analytics
Patents Grants
last 30 patents
Information
Patent Grant
Method of building underground cavern and tunneling machine
Patent number
5,118,220
Issue date
Jun 2, 1992
Kabushiki Kaisha Kematsu Seisakusho
Kihachior Furumi
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Trademark
last 30 trademarks