2139733

Information

• Patent Grant
• 2139733

• References
• Source

• Patent Number

  2,139,733

• Date Filed

  Not available

• Date Issued

  Tuesday, December 13, 1938
  86 years ago

• CPC

  • B23B31/207 - using mechanical transmission through the spindle
  • Y10T279/17444 - Split end to end

• US Classifications

  • 279 - Chucks or sockets