Document Type and Number:
Japanese Patent JPS5057932
Kind Code:
U
Application Number:
JP11625373U
Publication Date:
May 30, 1975
Filing Date:
October 04, 1973
Export Citation:
International Classes:
A01D57/00; A01D41/00; A01D61/00; (IPC1-7): A01D57/00; A01D41/00
Domestic Patent References:
| JPS408106Y1 |
Foreign References:
| US1969639A | 1934-08-07 | |||
| US2509970A | 1950-05-30 |