2179237

Information

• Patent Grant
• 2179237

• References
• Source

• Patent Number

  2,179,237

• Date Filed

  Not available

• Date Issued

  Tuesday, November 7, 1939
  86 years ago

• CPC

  • G10H3/02 - using mechanical interrupters

• US Classifications

  • 084 - Music
  • 310 - Electrical generator or motor structure
  • 984 - Musical instruments