Document Type and Number:
Japanese Patent JPS6389721
Kind Code:
U
Application Number:
JP18491486U
Publication Date:
June 10, 1988
Filing Date:
November 30, 1986
Export Citation:
International Classes:
A01C11/02; (IPC1-7): A01C11/02
Domestic Patent References:
| JPS61170227U | 1986-10-22 |