2239579

Information

• Patent Grant
• 2239579

• References
• Source

• Patent Number

  2,239,579

• Date Filed

  Not available

• Date Issued

  Tuesday, April 22, 1941
  83 years ago

• CPC

  • G09B15/06 - Devices for exercising or strengthening fingers or arms Devices for holding fingers or arms in a proper position for playing
  • G10D3/166 - Guides for bows

• US Classifications

  • 084 - Music