2904783

Information

• Patent Grant
• 2904783

• References
• Source

• Patent Number

  2,904,783

• Date Filed

  Not available

• Date Issued

  Tuesday, September 15, 1959
  66 years ago

• CPC

  • G10K1/063 - the sounding member being a bell

• US Classifications

  • 340 - Communications: electrical
  • 116 - Signals and indicators