3765760

Information

• Patent Grant
• 3765760

• References
• Source

• Patent Number

  3,765,760

• Date Filed

  Not available

• Date Issued

  Tuesday, October 16, 1973
  51 years ago

• CPC

  • G02B7/04 - with mechanism for focusing or varying magnification
  • G03B27/36 - by mechanical connections
  • G03B27/522 - Projection optics

• US Classifications

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