Document Type and Number:
Japanese Patent JPS63108422
Kind Code:
U
Application Number:
JP20001786U
Publication Date:
July 13, 1988
Filing Date:
December 29, 1986
Export Citation:
International Classes:
E01H5/02; B62B15/00; (IPC1-7): E01H5/02; B62B15/00
Domestic Patent References:
JP61121221B | ||||
JPS5927262B2 | 1984-07-04 | |||
JP46018995U |