524148

Information

• Patent Grant
• 524148

• References
• Source

• Patent Number

  524,148

• Date Filed

  Not available

• Date Issued

  Tuesday, August 7, 1894
  130 years ago

• CPC

  • E05B35/12 - requiring the use of two keys
  • Y10S70/17 - Check-key lock
  • Y10T70/7458 - Interdependent
  • Y10T70/7763 - Key ejecting
  • Y10T70/7802 - Multi-part structures

• US Classifications

  • 070 - Locks