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Patent Searching and Data


Document Type and Number:
Japanese Patent JPH02116541
Kind Code:
U
Application Number:
JP2379589U
Publication Date:
September 18, 1990
Filing Date:
March 03, 1989
Export Citation:
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International Classes:
E02D29/12; (IPC1-7): E02D29/12
Domestic Patent References:
JPS6263725A1987-03-20