Document Type and Number:
Japanese Patent JPS4975501
Kind Code:
U
Application Number:
JP11855672U
Publication Date:
July 01, 1974
Filing Date:
October 16, 1972
Export Citation:
International Classes:
E02F5/00; E01C19/23; E01C19/30; (IPC1-7): E02F5/00; E01C19/30