3449994

Information

• Patent Grant
• 3449994

• References
• Source

• Patent Number

  3,449,994

• Date Filed

  Not available

• Date Issued

  Tuesday, June 17, 1969
  55 years ago

• CPC

  • G10F5/02 - Actions
  • G10F1/02 - Pianofortes with keyboard

• US Classifications

  • 084 - Music