2354067

Information

• Patent Grant
• 2354067

• References
• Source

• Patent Number

  2,354,067

• Date Filed

  Not available

• Date Issued

  Tuesday, July 18, 1944
  80 years ago

• CPC

  • A44C17/006 - Gems provided with a cavity

• US Classifications

  • 063 - Jewelry
  • 359 - Optical: systems and elements