Title:
AUTOMATIC EXCAVATION CONTROLLER
Document Type and Number:
Japanese Patent JPS6168992
Kind Code:
A
Inventors:
AJIRO SHUICHI
Application Number:
JP18809184A
Publication Date:
April 09, 1986
Filing Date:
September 10, 1984
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACHINERY
International Classes:
E21B44/00; E21B44/04; (IPC1-7): E21B44/00
Domestic Patent References:
| JPS59154290A | 1984-09-03 | |||
| JPS54901B2 | 1979-01-18 |
Attorney, Agent or Firm:
Masami Akimoto