Title:
CONTROLLER FOR HYDRAULIC TYPE DRILL
Document Type and Number:
Japanese Patent JPS62236991
Kind Code:
A
Inventors:
IWATA SHUHO
Application Number:
JP7963486A
Publication Date:
October 17, 1987
Filing Date:
April 07, 1986
Export Citation:
Assignee:
MAZDA MOTOR
International Classes:
E21B1/26; E21B1/00; (IPC1-7): E21C3/20
Attorney, Agent or Firm:
Etsushi Kotani