1238566

Information

• Patent Grant
• 1238566

• References
• Source

• Patent Number

  1,238,566

• Date Filed

  Not available

• Date Issued

  Tuesday, August 28, 1917
  107 years ago

• CPC

  • A63J5/04 - Arrangements for making sound-effects

• US Classifications

  • 472 - Amusement devices
  • 084 - Music
  • 340 - Communications: electrical