3718392

Information

• Patent Grant
• 3718392

• References
• Source

• Patent Number

  3,718,392

• Date Filed

  Not available

• Date Issued

  Tuesday, February 27, 1973
  51 years ago

• CPC

  • G03B23/044 - whereby the picture is returned to the same stock

• US Classifications

  • 353 - Optics: image projectors
  • 206 - Special receptacle or package