1906759

Information

• Patent Grant
• 1906759

• References
• Source

• Patent Number

  1,906,759

• Date Filed

  Not available

• Date Issued

  Tuesday, May 2, 1933
  91 years ago

• CPC

  • G03B21/32 - Details specially adapted for motion-picture projection
  • G03B41/04 - with optical compensator

• US Classifications

  • 352 - Optics: motion pictures