3434780

Information

• Patent Grant
• 3434780

• References
• Source

• Patent Number

  3,434,780

• Date Filed

  Not available

• Date Issued

  Tuesday, March 25, 1969
  55 years ago

• CPC

  • G02C9/02 - by hinging
  • G02C5/00 - Construction of non-optical parts
  • G02C5/005 - Glasses allowing access to one eye

• US Classifications

  • 351 - Optics: eye examining, vision testing and correcting