Document Type and Number:
Japanese Patent JPS623591
Kind Code:
Y2
Application Number:
JP1749680U
Publication Date:
January 27, 1987
Filing Date:
February 13, 1980
Export Citation:
International Classes:
F16L39/00; F16L37/00; F16L37/22; F16L37/28; F16L37/32; (IPC1-7): F16L39/00; F16L37/22; F16L37/28
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