3919911

Information

• Patent Grant
• 3919911

• References
• Source

• Patent Number

  3,919,911

• Date Filed

  Not available

• Date Issued

  Tuesday, November 18, 1975
  49 years ago

• CPC

  • G10H1/46 - Volume control
  • Y10S84/19 - Light sensitive resistor

• US Classifications

  • 084 - Music
  • 984 - Musical instruments