988663

Information

• Patent Grant
• 988663

• References
• Source

• Patent Number

  988,663

• Date Filed

  Not available

• Date Issued

  Tuesday, April 4, 1911
  114 years ago

• CPC

  • E05B35/12 - requiring the use of two keys
  • Y10S70/05 - Magazine cylinder and pin tumblers
  • Y10S70/37 - Cylinder lock, multiple tumbler arrangements
  • Y10S70/75 - Adjustable tumbler
  • Y10T70/7458 - Interdependent
  • Y10T70/7734 - Automatically key set combinations

• US Classifications

  • 070 - Locks