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Patent Searching and Data


Title:
【発明の名称】反力受け支保部材
Document Type and Number:
Japanese Patent JPH0781517
Kind Code:
B2
Inventors:
Toshinori Toyota
Application Number:
JP490692A
Publication Date:
August 30, 1995
Filing Date:
January 14, 1992
Export Citation:
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Assignee:
STK Corporation
Toshinori Toyota
International Classes:
E21B7/02; E21B15/00; E21B19/08; E21D9/10; E21D9/11; E21D11/08; (IPC1-7): E21D11/08; E21C11/00; E21D9/10
Domestic Patent References:
JP1165898A
JP63289199A
Attorney, Agent or Firm:
Hajime Sakai (2 outside)