Ball end mill

Information

  • Patent Grant
  • D308874
  • Patent Number
    D308,874
  • Date Filed
    Wednesday, April 13, 1988
    36 years ago
  • Date Issued
    Tuesday, June 26, 1990
    34 years ago
Abstract
Description
Claims
  • The ornamental design for a ball and mill, as shown.
Priority Claims (1)
Number Date Country Kind
62-42121 Oct 1987 JPX
US Referenced Citations (8)
Number Name Date Kind
4252480 Mizuno et al. Feb 1981
4265574 Eckle May 1981
4527930 Harroun Jul 1985
4564321 Kondo et al. Jan 1986
4566827 Neumueller Jan 1986
4585375 Erkfritz Apr 1986
4588331 Yoshinori May 1986
4618296 Allaire et al. Oct 1986