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Patent Searching and Data


Document Type and Number:
Japanese Patent JPH0317116
Kind Code:
Y2
Application Number:
JP4305088U
Publication Date:
April 11, 1991
Filing Date:
March 30, 1988
Export Citation:
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International Classes:
F16L37/48; F16L37/00; F16L37/28; F16L37/30; F16L37/32; F16L39/00; (IPC1-7): F16L37/32; F16L37/00; F16L37/28; F16L37/00; F16L39/00