Document Type and Number:
Japanese Patent JPS577847
Kind Code:
B2
Application Number:
JP12598476A
Publication Date:
February 13, 1982
Filing Date:
October 20, 1976
Export Citation:
International Classes:
B21D43/00; B23D15/08; B23D31/00; B23D33/10; B26D3/00; B26D11/00
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