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Patent Searching and Data


Document Type and Number:
Japanese Patent JPH03116210
Kind Code:
U
Application Number:
JP2211690U
Publication Date:
December 02, 1991
Filing Date:
March 07, 1990
Export Citation:
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International Classes:
B21D5/04; (IPC1-7): B21D5/04
Domestic Patent References:
JPS6423615U1989-02-08
JPS529551A1977-01-25
JPS60146538U1985-09-28
JPS6036918U1985-03-14
Foreign References:
US3786666A1974-01-22