Document Type and Number:
Japanese Patent JPS4940467
Kind Code:
U
Application Number:
JP8151172U
Publication Date:
April 09, 1974
Filing Date:
July 10, 1972
Export Citation:
International Classes:
G04B39/02; F16J15/06; F16J15/10; G04B39/00; (IPC1-7): F16J15/06; G04B39/00
Domestic Patent References:
| JPS5045330U | 1975-05-07 |