Title:
DRILL FOR BUILDING PILLAR
Document Type and Number:
Japanese Patent JPS57108387
Kind Code:
A
Inventors:
IFUKU SATOSHI
Application Number:
JP18659780A
Publication Date:
July 06, 1982
Filing Date:
December 25, 1980
Export Citation:
Assignee:
IFUKU DENSETSU KK
International Classes:
E21B25/04; E21B3/00; (IPC1-7): E21B3/00
Domestic Patent References:
| JPS439572Y1 | 1968-04-25 |