Document Type and Number:
Japanese Patent JPS57131687
Kind Code:
U
Application Number:
JP1714681U
Publication Date:
August 17, 1982
Filing Date:
February 12, 1981
Export Citation:
International Classes:
F16L55/10; F16L29/00; (IPC1-7): F16L29/00
Domestic Patent References:
| JPS5122946B2 | 1976-07-13 | |||
| JP55090558B | ||||
| JP54149728B |