1391440

Information

• Patent Grant
• 1391440

• References
• Source

• Patent Number

  1,391,440

• Date Filed

  Not available

• Date Issued

  Tuesday, September 20, 1921
  103 years ago

• CPC

  • B23B31/1261 - pivotally movable in a radial plane
  • Y10T279/17222 - Screw actuated

• US Classifications

  • 279 - Chucks or sockets