3650612

Information

• Patent Grant
• 3650612

• References
• Source

• Patent Number

  3,650,612

• Date Filed

  Not available

• Date Issued

  Tuesday, March 21, 1972
  52 years ago

• CPC

  • G03B17/24 - with means for separately producing marks on the film
  • G03B2206/004 - using markings on the photographic material
  • G03B2217/245 - Mechanical devices

• US Classifications

  • 353 - Optics: image projectors
  • 033 - Geometrical instruments
  • 346 - Recorders
  • 352 - Optics: motion pictures