1977189

Information

• Patent Grant
• 1977189

• References
• Source

• Patent Number

  1,977,189

• Date Filed

  Not available

• Date Issued

  Tuesday, October 16, 1934
  90 years ago

• CPC

  • E05B19/00 - Keys Accessories therefor
  • E05B15/1614 - of hard materials, to prevent drilling
  • E05B27/00 - Cylinder locks and other locks with tumbler pins which are set by pushing the key in
  • E05B19/0076 - Keys with a curved longitudinal axis
  • E05B27/0035 - with indirectly actuated tumblers
  • Y10S70/37 - Cylinder lock, multiple tumbler arrangements
  • Y10T70/7605 - Pin tumblers
  • Y10T70/7791 - Keys
  • Y10T70/787 - Irregular nonplanar or undulated
  • Y10T70/7927 - Anti-jimmy
  • Y10T70/7932 - Anti-pick
  • Y10T70/7944 - Guard tumbler

• US Classifications

  • 070 - Locks