Document Type and Number:
Japanese Patent JPS6419602
Kind Code:
U
Application Number:
JP11282387U
Publication Date:
January 31, 1989
Filing Date:
July 23, 1987
Export Citation:
International Classes:
E01C1/00; E01C5/00; (IPC1-7): E01C1/00; E01C5/00
Domestic Patent References:
| JP52090457B |