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Patent Searching and Data


Document Type and Number:
Japanese Patent JPH02132780
Kind Code:
U
Application Number:
JP4176289U
Publication Date:
November 05, 1990
Filing Date:
April 10, 1989
Export Citation:
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International Classes:
E03D9/08; (IPC1-7): E03D9/08
Domestic Patent References:
JPS6171676U1986-05-15
JPS60166928U1985-11-06
JPS61188229U1986-11-22