Document Type and Number:
Japanese Patent JPS4973382
Kind Code:
U
Application Number:
JP11783872U
Publication Date:
June 25, 1974
Filing Date:
October 11, 1972
Export Citation:
International Classes:
E01F9/00; E01F9/619; E01F9/673; G09F7/18; (IPC1-7): E01F9/02; E01F9/01