3901586

Information

• Patent Grant
• 3901586

• References
• Source

• Patent Number

  3,901,586

• Date Filed

  Not available

• Date Issued

  Tuesday, August 26, 1975
  49 years ago

• CPC

  • G03G15/041 - with variable magnification
  • G02B7/04 - with mechanism for focusing or varying magnification
  • G02B13/24 - for reproducing or copying at short object distances
  • G03B3/06 - using movable reflectors to alter length of light path

• US Classifications

  • 359 - Optical: systems and elements
  • 355 - Photocopying