1239039

Information

• Patent Grant
• 1239039

• References
• Source

• Patent Number

  1,239,039

• Date Filed

  Not available

• Date Issued

  Tuesday, September 4, 1917
  107 years ago

• CPC

  • G07F17/14 - for fastenings for doors for turnstiles
  • Y10T70/7774 - False or picking key trapping

• US Classifications

  • 194 - Check-actuated control mechanisms
  • 070 - Locks