502782

Information

• Patent Grant
• 502782

• References
• Source

• Patent Number

  502,782

• Date Filed

  Not available

• Date Issued

  Tuesday, August 8, 1893
  131 years ago

• CPC

  • G02C1/08 - the rims being tranversely split and provided with securing means
  • Y10T24/45607 - with additional cavity for engaging different projection
  • Y10T24/45853 - including separate, nonprojection-engaging spring for biasing

• US Classifications

  • 351 - Optics: eye examining, vision testing and correcting
  • 024 - Buckles, buttons, clasps, etc.