666138

Information

• Patent Grant
• 666138

• References
• Source

• Patent Number

  666,138

• Date Filed

  Not available

• Date Issued

  Tuesday, January 15, 1901
  124 years ago

• CPC

  • G10C3/225 - the actions, in particular the hammers, being mounted above the strings

• US Classifications

  • 084 - Music