2634648

Information

• Patent Grant
• 2634648

• References
• Source

• Patent Number

  2,634,648

• Date Filed

  Not available

• Date Issued

  Tuesday, April 14, 1953
  71 years ago

• CPC

  • G10C3/163 - the actions being mounted in a plane below the keyboard

• US Classifications

  • 084 - Music