1784049

Information

• Patent Grant
• 1784049

• References
• Source

• Patent Number

  1,784,049

• Date Filed

  Not available

• Date Issued

  Tuesday, December 9, 1930
  94 years ago

• CPC

  • G04B23/005 - by starting up musical boxes or other musical recordings

• US Classifications

  • 188 - Brakes
  • 368 - Horology: time measuring systems or devices
  • 369 - Dynamic information storage or retrieval
  • 968 - Horology