568686

Information

• Patent Grant
• 568686

• References
• Source

• Patent Number

  568,686

• Date Filed

  Not available

• Date Issued

  Tuesday, September 29, 1896
  128 years ago

• CPC

  • G10H1/0535 - by switches incorporating a mechanical vibrator, the envelope of the mechanical vibration being used as modulating signal
  • G10B1/08 - of harmoniums

• US Classifications

  • 084 - Music