3440917

Information

• Patent Grant
• 3440917

• References
• Source

• Patent Number

  3,440,917

• Date Filed

  Not available

• Date Issued

  Tuesday, April 29, 1969
  55 years ago

• CPC

  • G10D3/046 - Mutes; Mute holders

• US Classifications

  • 084 - Music
  • 984 - Musical instruments