SCREW JOINT FOR OIL WELL PIPE - SUMITOMO METAL IND

Title:

SCREW JOINT FOR OIL WELL PIPE

Document Type and Number:

Japanese Patent JPS5850386

Kind Code:

A

Inventors:

KAWASHIMA JIYUICHI
MORITA YOSHIYASU
ARISUE MASAICHI

Application Number:

JP14908381A

Publication Date:

March 24, 1983

Filing Date:

September 21, 1981

Export Citation:

Assignee:

SUMITOMO METAL IND

International Classes:

F16L15/04; E21B17/042; F16B33/02; F16J15/06; F16J15/10; (IPC1-7): E21B17/042; F16B33/02; F16J15/06; F16L15/04

Attorney, Agent or Firm:

Yoshihisa Nagai

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