Title:
CONTROL APPARATUS OF ROCK DRILL
Document Type and Number:
Japanese Patent JPS5447802
Kind Code:
A
Inventors:
HAINRITSUHI MANTEN
Application Number:
JP10696078A
Publication Date:
April 14, 1979
Filing Date:
August 31, 1978
Export Citation:
Assignee:
SALZGITTER MASCHINEN AG
International Classes:
E21B1/26; E21B1/00; G09B9/00; (IPC1-7): E21C3/00