1971638

Information

• Patent Grant
• 1971638

• References
• Source

• Patent Number

  1,971,638

• Date Filed

  Not available

• Date Issued

  Tuesday, August 28, 1934
  90 years ago

• CPC

  • B23B31/16079 - using mechanical transmission through the spindle
  • Y10T279/1913 - Transverse-screw actuated

• US Classifications

  • 279 - Chucks or sockets