3740146

Information

• Patent Grant
• 3740146

• References
• Source

• Patent Number

  3,740,146

• Date Filed

  Not available

• Date Issued

  Tuesday, June 19, 1973
  51 years ago

• CPC

  • G03B19/26 - with fade-in and fade-out effects
  • G03B9/08 - Shutters
  • G03B19/18 - Motion-picture cameras

• US Classifications

  • 352 - Optics: motion pictures
  • 192 - Clutches and power-stop control