254336

Information

• Patent Grant
• 254336

• References
• Source

• Patent Number

  254,336

• Date Filed

  Not available

• Date Issued

  Tuesday, February 28, 1882
  142 years ago

• CPC

  • E05B45/086 - by transverse movement
  • G08B13/04 - by breaking of glass

• US Classifications

  • 340 - Communications: electrical