Document Type and Number:
Japanese Patent JPS5229087
Kind Code:
U
Application Number:
JP11512775U
Publication Date:
March 01, 1977
Filing Date:
August 20, 1975
Export Citation:
International Classes:
E01F9/00; E01F9/608; E01F9/615; E01F9/619; G08G1/09; (IPC1-7): E01F9/00; G08G1/09