Document Type and Number:
Japanese Patent JPS6424905
Kind Code:
U
Application Number:
JP11933587U
Publication Date:
February 10, 1989
Filing Date:
August 04, 1987
Export Citation:
International Classes:
A01B59/042; A01B71/02; (IPC1-7): A01B71/02; A01B59/042
Domestic Patent References:
| JPS5040716B1 | 1975-12-26 | |||
| JP52055811B |