Document Type and Number:
Japanese Patent JPS4981505
Kind Code:
U
Application Number:
JP12596772U
Publication Date:
July 15, 1974
Filing Date:
October 31, 1972
Export Citation:
International Classes:
E02B11/00; E02D3/10; E02D17/20; E02D29/02; (IPC1-7): E02D29/02