2999477

Information

• Patent Grant
• 2999477

• References
• Source

• Patent Number

  2,999,477

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1961
  64 years ago

• CPC

  • G10K1/074 - with rotary clappers or shells
  • G08B17/02 - Mechanical actuation of the alarm

• US Classifications

  • 116 - Signals and indicators