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Patent Searching and Data


Document Type and Number:
Japanese Patent JPH03119129
Kind Code:
U
Application Number:
JP2750590U
Publication Date:
December 09, 1991
Filing Date:
March 17, 1990
Export Citation:
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International Classes:
E04F15/00; E04F15/02; E04F15/18; (IPC1-7): E04F15/00; E04F15/02; E04F15/18
Domestic Patent References:
JPS5610712B21981-03-10
JP57097038B
JPS56100968A1981-08-13