Title:
STRAINER PIPE FOR WELL
Document Type and Number:
Japanese Patent JPS61221488
Kind Code:
A
Inventors:
TAKEISHI YOSHIAKI
ISHII TOKU
ISHII TOKU
Application Number:
JP6151985A
Publication Date:
October 01, 1986
Filing Date:
March 25, 1985
Export Citation:
Assignee:
SUMITOMO METAL IND
International Classes:
E21B43/08; (IPC1-7): E21B43/08
Attorney, Agent or Firm:
Yoshihisa Nagai