Document Type and Number:
Japanese Patent JPS4923977
Kind Code:
Y1
Application Number:
JP6083170U
Publication Date:
June 27, 1974
Filing Date:
June 17, 1970
Export Citation:
International Classes:
A01F12/30; A01F12/44; A01F12/54; (IPC1-7): A01F12/44; A01F12/54