Document Type and Number:
Japanese Patent JPS5038887
Kind Code:
B1
Application Number:
JP5190969A
Publication Date:
December 12, 1975
Filing Date:
July 02, 1969
Export Citation:
International Classes:
E02F3/413; (IPC1-7): E02F3/44
Domestic Patent References:
| JPS3616621Y1 | ||||
| JPS4124041Y1 |