389721

Information

• Patent Grant
• 389721

• References
• Source

• Patent Number

  389,721

• Date Filed

  Not available

• Date Issued

  Tuesday, September 18, 1888
  136 years ago

• CPC

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

• US Classifications

  • 279 - Chucks or sockets