1845519

Information

• Patent Grant
• 1845519

• References
• Source

• Patent Number

  1,845,519

• Date Filed

  Not available

• Date Issued

  Tuesday, February 16, 1932
  92 years ago

• CPC

  • G03B33/14 - using lenticular screens

• US Classifications

  • 352 - Optics: motion pictures
  • 213 - Railway draft appliances
  • 355 - Photocopying