2811893

Information

• Patent Grant
• 2811893

• References
• Source

• Patent Number

  2,811,893

• Date Filed

  Not available

• Date Issued

  Tuesday, November 5, 1957
  67 years ago

• CPC

  • G03C9/04 - vectographic-image

• US Classifications

  • 359 - Optical: systems and elements