Document Type and Number:
Japanese Patent JPS539713
Kind Code:
Y2
Application Number:
JP5720273U
Publication Date:
March 14, 1978
Filing Date:
May 15, 1973
Export Citation:
International Classes:
B24B39/00; B21D3/00; B21H1/00; B21H1/16; B23P9/02; B24B39/04; (IPC1-7): B24B39/04; B23P9/02
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