3692391

Information

• Patent Grant
• 3692391

• References
• Source

• Patent Number

  3,692,391

• Date Filed

  Not available

• Date Issued

  Tuesday, September 19, 1972
  53 years ago

• CPC

  • G03B21/02 - Multiple-film apparatus
  • G03B21/323 - Cassettes

• US Classifications

  • 352 - Optics: motion pictures