3500393

Information

• Patent Grant
• 3500393

• References
• Source

• Patent Number

  3,500,393

• Date Filed

  Not available

• Date Issued

  Tuesday, March 10, 1970
  55 years ago

• CPC

  • G10K1/0645 - provided with loudness adjustment

• US Classifications

  • 340 - Communications: electrical
  • 310 - Electrical generator or motor structure