2778136

Information

• Patent Grant
• 2778136

• References
• Source

• Patent Number

  2,778,136

• Date Filed

  Not available

• Date Issued

  Tuesday, January 22, 1957
  68 years ago

• CPC

  • G02C11/02 - Ornaments
  • Y10T24/3657 - Resilient head

• US Classifications

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