3631641

Information

• Patent Grant
• 3631641

• References
• Source

• Patent Number

  3,631,641

• Date Filed

  Not available

• Date Issued

  Tuesday, January 4, 1972
  53 years ago

• CPC

  • B24B11/00 - Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work Accessories therefor
  • B24D15/061 - for electric shaving blades

• US Classifications

  • 451 - Abrading