2634409

Information

• Patent Grant
• 2634409

• References
• Source

• Patent Number

  2,634,409

• Date Filed

  Not available

• Date Issued

  Tuesday, April 7, 1953
  71 years ago

• CPC

  • G10K1/26 - Mountings Casings
  • G10K1/063 - the sounding member being a bell

• US Classifications

  • 340 - Communications: electrical