1723168

Information

• Patent Grant
• 1723168

• References
• Source

• Patent Number

  1,723,168

• Date Filed

  Not available

• Date Issued

  Tuesday, August 6, 1929
  95 years ago

• CPC

  • A63J5/04 - Arrangements for making sound-effects

• US Classifications

  • 472 - Amusement devices
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
  • 340 - Communications: electrical