Title:
EARTH AUGER
Document Type and Number:
Japanese Patent JPS5394401
Kind Code:
A
Inventors:
NAKAKAWANISHI TADASHI
Application Number:
JP902877A
Publication Date:
August 18, 1978
Filing Date:
January 29, 1977
Export Citation:
Assignee:
NAKAKAWANISHI TADASHI
SHIMODA YUUMATSU
SHIMODA YUUMATSU
International Classes:
E21B7/00; E02F3/06; E21B7/02; (IPC1-7): E02D17/144; E02F3/06
Domestic Patent References:
| JPS3316748Y1 | ||||
| JPS4932161A | 1974-03-23 |