1793772

Information

• Patent Grant
• 1793772

• References
• Source

• Patent Number

  1,793,772

• Date Filed

  Not available

• Date Issued

  Tuesday, February 24, 1931
  93 years ago

• CPC

  • G03B31/00 - Associated working of cameras or projectors with sound recording or reproducing means
  • Y10S200/11 - Web or thread actuated

• US Classifications

  • 352 - Optics: motion pictures
  • 200 - Electricity: circuit makers and breakers
  • 369 - Dynamic information storage or retrieval