1669391

Information

• Patent Grant
• 1669391

• References
• Source

• Patent Number

  1,669,391

• Date Filed

  Not available

• Date Issued

  Tuesday, May 8, 1928
  96 years ago

• CPC

  • G10F5/06 - Driving or setting of tune barrels, discs, or the like Winding, rewinding, or guiding of tune sheets or the like
  • G10F1/02 - Pianofortes with keyboard

• US Classifications

  • 084 - Music