2917980

Information

• Patent Grant
• 2917980

• References
• Source

• Patent Number

  2,917,980

• Date Filed

  Not available

• Date Issued

  Tuesday, December 22, 1959
  65 years ago

• CPC

  • B41B21/24 - defining multiple optical paths
  • G02B3/00 - Simple or compound lenses

• US Classifications

  • 396 - Photography
  • 359 - Optical: systems and elements