2688346

Information

• Patent Grant
• 2688346

• References
• Source

• Patent Number

  2,688,346

• Date Filed

  Not available

• Date Issued

  Tuesday, September 7, 1954
  70 years ago

• CPC

  • B21F45/002 - of frames for spectacles
  • Y10T29/31 - Spectacle-frame making

• US Classifications

  • 140 - Wireworking
  • 029 - Metal working