Document Type and Number:
Japanese Patent JPS56174788
Kind Code:
U
Application Number:
JP7320080U
Publication Date:
December 23, 1981
Filing Date:
May 29, 1980
Export Citation:
International Classes:
F16L7/00; F16L59/12; F16L59/147; (IPC1-7): F16L59/12; F16L7/00