Title:
EARTH DISCHARGER FOR SCREWWTYPE EXCAVATOR
Document Type and Number:
Japanese Patent JPS5549492
Kind Code:
A
Inventors:
NAKAMURA TAKAYUKI
Application Number:
JP12317478A
Publication Date:
April 09, 1980
Filing Date:
October 05, 1978
Export Citation:
Assignee:
SANWA KIZAI CO LTD
International Classes:
E21B12/06; (IPC1-7): E21B12/06