Document Type and Number:
Japanese Patent JPS5220682
Kind Code:
U
Application Number:
JP10604975U
Publication Date:
February 14, 1977
Filing Date:
July 30, 1975
Export Citation:
International Classes:
B61J1/00; B61B13/12; E01B25/00; (IPC1-7): B61B13/12; E01B25/00
Domestic Patent References:
| JPS4729529A |