3713644

Information

• Patent Grant
• 3713644

• References
• Source

• Patent Number

  3,713,644

• Date Filed

  Not available

• Date Issued

  Tuesday, January 30, 1973
  52 years ago

• CPC

  • G03D15/08 - Flattening prints
  • B65H23/04 - longitudinally
  • G03B1/42 - Guiding, framing, or constraining film in desired position relative to lens system
  • G03B1/56 - Threading Loop forming
  • G03B17/30 - Locating spools or other rotatable holders of coiled film
  • G03B19/04 - Roll-film cameras
  • G03B21/32 - Details specially adapted for motion-picture projection
  • G03B21/64 - Means for mounting individual pictures to be projected
  • G03B27/6292 - Handling microfiche

• US Classifications

  • 271 - Sheet feeding or delivering
  • 353 - Optics: image projectors