2818760

Information

• Patent Grant
• 2818760

• References
• Source

• Patent Number

  2,818,760

• Date Filed

  Not available

• Date Issued

  Tuesday, January 7, 1958
  67 years ago

• CPC

  • G10H1/04 - by additional modulation
  • H03C3/28 - using variable impedance driven mechanically or acoustically
  • Y10S84/18 - Tuning

• US Classifications

  • 084 - Music
  • 256 - Fences
  • 984 - Musical instruments