3563057

Information

• Patent Grant
• 3563057

• References
• Source

• Patent Number

  3,563,057

• Date Filed

  Not available

• Date Issued

  Tuesday, February 16, 1971
  54 years ago

• CPC

  • C03B23/22 - Uniting glass lenses

• US Classifications

  • 065 - Glass manufacturing
  • 351 - Optics: eye examining, vision testing and correcting