3690749

Information

• Patent Grant
• 3690749

• References
• Source

• Patent Number

  3,690,749

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1972
  52 years ago

• CPC

  • G03B41/06 - with rotating reflecting member
  • G03B19/18 - Motion-picture cameras
  • G03B21/18 - Fire preventing or extinguishing

• US Classifications

  • 352 - Optics: motion pictures