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Patent Searching and Data


Document Type and Number:
Japanese Patent JPH0218643
Kind Code:
B2
Inventors:
OKA TOSHIHIRO
KUMAGAI NORYASU
Application Number:
JP14617885A
Publication Date:
April 26, 1990
Filing Date:
July 02, 1985
Export Citation:
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Assignee:
KOTOBUKI SANGYO KK
SHINNIPPON SEITETSU KK
International Classes:
B21B1/16; B21B13/00; B21B31/24; B21B39/14; B21B39/16; B21B1/22; B21B31/26; B21B35/10