Document Type and Number:
Japanese Patent JPS5538881
Kind Code:
U
Application Number:
JP12378378U
Publication Date:
March 12, 1980
Filing Date:
September 08, 1978
Export Citation:
International Classes:
A01C11/02; A01B63/00; A01B63/10; (IPC1-7): A01C11/02; A01B63/10