Document Type and Number:
Japanese Patent JPS5440808
Kind Code:
U
Application Number:
JP11497877U
Publication Date:
March 17, 1979
Filing Date:
August 26, 1977
Export Citation:
International Classes:
A01B33/12; A01B13/02; A01B39/14; (IPC1-7): A01B13/02
Domestic Patent References:
| JPS53147205U | 1978-11-20 |