Document Type and Number:
Japanese Patent JPS6217670
Kind Code:
Y2
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Application Number:
JP15813477U
Publication Date:
May 07, 1987
Filing Date:
November 24, 1977
Export Citation:
International Classes:
F16L9/12; F16L9/18; F16L11/12; F16L21/00; F16L21/02; F16L37/00; F16L39/00; F16L47/00; (IPC1-7): F16L9/18; F16L39/00; F16L47/00