1121668

Information

• Patent Grant
• 1121668

• References
• Source

• Patent Number

  1,121,668

• Date Filed

  Not available

• Date Issued

  Tuesday, December 22, 1914
  110 years ago

• CPC

  • B25B17/00 - Hand-driven gear-operated wrenches or screwdrivers
  • Y10S81/10 - Iris-type wrench head

• US Classifications

  • 081 - Tools
  • 105 - Railway rolling stock