1389731

Information

• Patent Grant
• 1389731

• References
• Source

• Patent Number

  1,389,731

• Date Filed

  Not available

• Date Issued

  Tuesday, September 6, 1921
  104 years ago

• CPC

  • B23B31/1602 - Individually adjustable jaws
  • Y10S411/999 - with retainer
  • Y10T279/1926 - Spiral cam or scroll actuated
  • Y10T279/1953 - Toggle actuated

• US Classifications

  • 279 - Chucks or sockets
  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener