2634701

Information

• Patent Grant
• 2634701

• References
• Source

• Patent Number

  2,634,701

• Date Filed

  Not available

• Date Issued

  Tuesday, April 14, 1953
  71 years ago

• CPC

  • G10K7/04 - by an electric motor

• US Classifications

  • 116 - Signals and indicators
  • 181 - Acoustics