Document Type and Number:
Japanese Patent JPS5684185
Kind Code:
U
Application Number:
JP16691379U
Publication Date:
July 07, 1981
Filing Date:
December 01, 1979
Export Citation:
International Classes:
F16L41/06; (IPC1-7): F16L41/06
Domestic Patent References:
| JPS4922522B1 | 1974-06-10 |