Document Type and Number:
Japanese Patent JPS57181522
Kind Code:
U
Application Number:
JP6738181U
Publication Date:
November 17, 1982
Filing Date:
May 09, 1981
Export Citation:
International Classes:
A01D34/68; A01F29/22; B23D63/14; B24B3/46; (IPC1-7): B23D63/14; A01D35/26; A01F29/22
Domestic Patent References:
| JP54088993B | ||||
| JPS4827029U | 1973-04-02 | |||
| JP50101991B |