Document Type and Number:
Japanese Patent JPS5525777
Kind Code:
Y2
Application Number:
JP10751576U
Publication Date:
June 21, 1980
Filing Date:
August 10, 1976
Export Citation:
International Classes:
A01C17/00; A01C7/08; A01C7/20; (IPC1-7): A01C17/00; A01C7/20