Document Type and Number:
Japanese Patent JPH0242003
Kind Code:
B2
Application Number:
JP17490083A
Publication Date:
September 20, 1990
Filing Date:
September 20, 1983
Export Citation:
International Classes:
B21B19/04; B21B19/02; B21B19/06; B21B37/00; B21B37/18; B21B37/78