3673844

Information

• Patent Grant
• 3673844

• References
• Source

• Patent Number

  3,673,844

• Date Filed

  Not available

• Date Issued

  Tuesday, July 4, 1972
  52 years ago

• CPC

  • B29D12/02 - Spectacle frames
  • B21F45/002 - of frames for spectacles

• US Classifications

  • 072 - Metal deforming
  • 081 - Tools
  • 351 - Optics: eye examining, vision testing and correcting