Document Type and Number:
Japanese Patent JPS4717213
Kind Code:
U
Application Number:
JP2214871U
Publication Date:
October 28, 1972
Filing Date:
March 30, 1971
Export Citation:
International Classes:
F16L23/024; F16L23/00; F16L23/026; F16L23/028; (IPC1-7): F16L23/00