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Patent Searching and Data


Document Type and Number:
Japanese Patent JPH02116540
Kind Code:
U
Application Number:
JP2549589U
Publication Date:
September 18, 1990
Filing Date:
March 06, 1989
Export Citation:
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International Classes:
E02D17/20; E02D29/02; (IPC1-7): E02D29/02; E02D17/20
Domestic Patent References:
JPS5421402U1979-02-10
JPH02210121A1990-08-21