1919091

Information

• Patent Grant
• 1919091

• References
• Source

• Patent Number

  1,919,091

• Date Filed

  Not available

• Date Issued

  Tuesday, July 18, 1933
  91 years ago

• CPC

  • E05B11/06 - for catching skeleton or incorrect keys
  • Y10S70/49 - with alarm
  • Y10T70/7774 - False or picking key trapping
  • Y10T70/7915 - Tampering prevention or attack defeating

• US Classifications

  • 070 - Locks