Document Type and Number:
Japanese Patent JPS6442313
Kind Code:
U
Application Number:
JP13673587U
Publication Date:
March 14, 1989
Filing Date:
September 09, 1987
Export Citation:
International Classes:
E01F7/02; E04H17/14; (IPC1-7): E01F7/02; E04H17/14
Domestic Patent References:
| JP62140157B |