Document Type and Number:
Japanese Patent JPS62158483
Kind Code:
U
Application Number:
JP4550186U
Publication Date:
October 08, 1987
Filing Date:
March 29, 1986
Export Citation:
International Classes:
E01H5/10; G09F7/00; G09F15/00; (IPC1-7): G09F15/00; E01H5/10