Document Type and Number:
Japanese Patent JPS5498002
Kind Code:
U
Application Number:
JP17312677U
Publication Date:
July 11, 1979
Filing Date:
December 21, 1977
Export Citation:
International Classes:
E02F3/355; A01B35/00; A01B35/04; E02F3/64; (IPC1-7): E02F3/64