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Patent Searching and Data


Document Type and Number:
Japanese Patent JPH03108010
Kind Code:
U
Application Number:
JP1367590U
Publication Date:
November 07, 1991
Filing Date:
February 14, 1990
Export Citation:
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International Classes:
E01F7/04; E01F13/00; E01F13/08; E04H17/14; (IPC1-7): E01F7/04; E04H17/14
Domestic Patent References:
JPS54183904U1979-12-27
JPS5219403U1977-02-10
JPS57110112U1982-07-07