3920319

Information

• Patent Grant
• 3920319

• References
• Source

• Patent Number

  3,920,319

• Date Filed

  Not available

• Date Issued

  Tuesday, November 18, 1975
  49 years ago

• CPC

  • G03B21/50 - Control devices operated by the film strip during the run

• US Classifications

  • 352 - Optics: motion pictures
  • 273 - Amusement devices: games