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  • Publication Date: February 04, 1982
  • Publication Number: JP-S5721673-U

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    Patent Citations (2)

      Publication numberPublication dateAssigneeTitle
      JP-S5134813-AMarch 24, 1976Hitachi Metals LtdKyujokokuenchutetsu no setsushuhohoto sonosochi
      JP-S5441714-UMarch 20, 1979

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