Document Type and Number:
Japanese Patent JPS63156280
Kind Code:
U
More Like This:
Application Number:
JP4979287U
Publication Date:
October 13, 1988
Filing Date:
April 01, 1987
Export Citation:
International Classes:
E01C1/00; E03F5/04; (IPC1-7): E03F5/04; E01C1/00
Domestic Patent References:
| JP61125579B | ||||
| JP62125185B |