2161296

Information

• Patent Grant
• 2161296

• References
• Source

• Patent Number

  2,161,296

• Date Filed

  Not available

• Date Issued

  Tuesday, June 6, 1939
  85 years ago

• CPC

  • G02C1/026 - with auxiliary bars
  • G02C1/02 - Bridge or browbar secured to lenses without the use of rims

• US Classifications

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