Document Type and Number:
Japanese Patent JPS4937509
Kind Code:
B1
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Application Number:
JP7135970A
Publication Date:
October 09, 1974
Filing Date:
August 14, 1970
Export Citation:
International Classes:
B21D31/00; B21D37/20; B29C33/00; B29C43/00; B29C43/02; B29C43/36