3731505

Information

• Patent Grant
• 3731505

• References
• Source

• Patent Number

  3,731,505

• Date Filed

  Not available

• Date Issued

  Tuesday, May 8, 1973
  51 years ago

• CPC

  • E05B35/12 - requiring the use of two keys
  • Y10S70/63 - Multiple locks
  • Y10T70/5031 - Receptacle
  • Y10T70/5584 - Dead bolt
  • Y10T70/7192 - Plural independently operable sets

• US Classifications

  • 070 - Locks
  • 049 - Movable or removable closures