3432228

Information

• Patent Grant
• 3432228

• References
• Source

• Patent Number

  3,432,228

• Date Filed

  Not available

• Date Issued

  Tuesday, March 11, 1969
  56 years ago

• CPC

  • G03B17/24 - with means for separately producing marks on the film
  • G03B1/54 - Tensionning or loop-maintaining devices
  • G03B21/50 - Control devices operated by the film strip during the run

• US Classifications

  • 352 - Optics: motion pictures