1758972

Information

• Patent Grant
• 1758972

• References
• Source

• Patent Number

  1,758,972

• Date Filed

  Not available

• Date Issued

  Tuesday, May 20, 1930
  94 years ago

• CPC

  • G10C1/02 - of upright pianofortes
  • G10C1/00 - General design

• US Classifications

  • 084 - Music