2290731

Information

• Patent Grant
• 2290731

• References
• Source

• Patent Number

  2,290,731

• Date Filed

  Not available

• Date Issued

  Tuesday, July 21, 1942
  82 years ago

• CPC

  • B23B31/1284 - with a centre
  • Y10T279/17213 - Transversely oscillating jaws

• US Classifications

  • 279 - Chucks or sockets
  • 033 - Geometrical instruments
  • 451 - Abrading