1523160

Information

• Patent Grant
• 1523160

• References
• Source

• Patent Number

  1,523,160

• Date Filed

  Not available

• Date Issued

  Tuesday, January 13, 1925
  100 years ago

• CPC

  • G03B9/68 - Cocking effected by movement of film
  • G03B21/32 - Details specially adapted for motion-picture projection

• US Classifications

  • 352 - Optics: motion pictures
  • 396 - Photography