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Patent Searching and Data


Document Type and Number:
Japanese Patent JPH03116201
Kind Code:
U
Application Number:
JP2229790U
Publication Date:
December 02, 1991
Filing Date:
March 06, 1990
Export Citation:
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International Classes:
B21B19/04; B21B23/00; B21B25/02; (IPC1-7): B21B19/04; B21B25/02
Domestic Patent References:
JPH03174929A