3880505

Information

• Patent Grant
• 3880505

• References
• Source

• Patent Number

  3,880,505

• Date Filed

  Not available

• Date Issued

  Tuesday, April 29, 1975
  49 years ago

• CPC

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

• US Classifications

  • 352 - Optics: motion pictures