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Patent Searching and Data


Document Type and Number:
Japanese Patent JPH02140096
Kind Code:
U
Application Number:
JP5081289U
Publication Date:
November 22, 1990
Filing Date:
April 27, 1989
Export Citation:
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International Classes:
F16L33/02; F16L35/00; F16L57/00; (IPC1-7): F16L35/00; F16L33/02; F16L57/00
Domestic Patent References:
JP60131788B
JPS6245497B21987-09-28
JPS503133B11975-01-31
JPS5134019B11976-09-24



 
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