Document Type and Number:
Japanese Patent JPH0222097
Kind Code:
Y2
Application Number:
JP12979284U
Publication Date:
June 14, 1990
Filing Date:
August 29, 1984
Export Citation:
International Classes:
B21D31/06; B21D19/08; B21D41/04; B21D53/06; (IPC1-7): B21D41/04; B21D19/08; B21D31/06; B21D53/06