3820886

Information

• Patent Grant
• 3820886

• References
• Source

• Patent Number

  3,820,886

• Date Filed

  Not available

• Date Issued

  Friday, June 28, 1974
  50 years ago

• CPC

  • G03B23/125 - the pictures being attached to a chain or linked up to form a chain

• US Classifications

  • 353 - Optics: image projectors