3842205

Information

• Patent Grant
• 3842205

• References
• Source

• Patent Number

  3,842,205

• Date Filed

  Not available

• Date Issued

  Tuesday, October 15, 1974
  50 years ago

• CPC

  • G10H1/045 - by electromechanical means
  • G10H1/047 - by acousto-mechanical means

• US Classifications

  • 381 - Electrical audio signal processing systems and devices
  • 084 - Music
  • 379 - Telephonic communications
  • 984 - Musical instruments