1770983

Information

• Patent Grant
• 1770983

• References
• Source

• Patent Number

  1,770,983

• Date Filed

  Not available

• Date Issued

  Tuesday, July 22, 1930
  94 years ago

• CPC

  • G10C1/04 - of grand pianofortes
  • G10C3/06 - Resonating means

• US Classifications

  • 084 - Music