Title:
OIL PRESSURE CONTROL CIRCUIT OF ROCK DRILLING MACHINE
Document Type and Number:
Japanese Patent JPS5858390
Kind Code:
A
More Like This:
| WO/1989/011022 | HYDRAULIC DRILLING MACHINE |
| WO/1989/010688 | METHOD AND DEVICE FOR DETERMINING THE QUANTITY OF MILK EXTRACTED FROM ONE COW |
Inventors:
SHIIHARA YOSHIO
Application Number:
JP15572181A
Publication Date:
April 06, 1983
Filing Date:
September 29, 1981
Export Citation:
Assignee:
TOYO KOGYO CO
International Classes:
E21B1/26; E21B1/00; E21B19/08; E21B19/086; (IPC1-7): E21C3/00
Attorney, Agent or Firm:
Hiroshi Maeda