2160675

Information

• Patent Grant
• 2160675

• References
• Source

• Patent Number

  2,160,675

• Date Filed

  Not available

• Date Issued

  Tuesday, May 30, 1939
  86 years ago

• CPC

  • G02C5/045 - for varying the horizontal distance of the lenses
  • Y10S24/53 - Projection or cavity rotates about axis of cavity access opening to interlock
  • Y10T24/3904 - Bead chain fasteners
  • Y10T24/45225 - including member having distinct formations and mating member selectively interlocking therewith
  • Y10T24/45707 - having aperture therein alignable with parallel access opening
  • Y10T403/54 - Flexible member is joint component

• US Classifications

  • 024 - Buckles, buttons, clasps, etc.
  • 002 - Apparel
  • 351 - Optics: eye examining, vision testing and correcting
  • 403 - Joints and connections