1965721

Information

• Patent Grant
• 1965721

• References
• Source

• Patent Number

  1,965,721

• Date Filed

  Not available

• Date Issued

  Tuesday, July 10, 1934
  90 years ago

• CPC

  • B44B3/003 - using a pendulum
  • B44B3/065 - Work holders

• US Classifications

  • 033 - Geometrical instruments
  • 451 - Abrading