Document Type and Number:
Japanese Patent JPH02905
Kind Code:
U
Application Number:
JP7821388U
Publication Date:
January 08, 1990
Filing Date:
June 13, 1988
Export Citation:
International Classes:
A01B49/06; A01C9/02; (IPC1-7): A01C9/02; A01B49/06
Domestic Patent References:
| JPS6221812B2 | 1987-05-14 |
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