1219439

Information

• Patent Grant
• 1219439

• References
• Source

• Patent Number

  1,219,439

• Date Filed

  Not available

• Date Issued

  Tuesday, March 20, 1917
  107 years ago

• CPC

  • B23B31/16008 - Details of the jaws
  • B25B5/087 - actuated by a hydraulic or pneumatic piston
  • Y10T279/1933 - Worm

• US Classifications

  • 279 - Chucks or sockets