530975

Information

• Patent Grant
• 530975

• References
• Source

• Patent Number

  530,975

• Date Filed

  Not available

• Date Issued

  Tuesday, December 18, 1894
  131 years ago

• CPC

  • G08B13/08 - by opening
  • Y10S200/12 - Burglar screens

• US Classifications

  • 340 - Communications: electrical
  • 109 - Safes, bank protection, or a related device
  • 200 - Electricity: circuit makers and breakers