2271296

Information

• Patent Grant
• 2271296

• References
• Source

• Patent Number

  2,271,296

• Date Filed

  Not available

• Date Issued

  Tuesday, January 27, 1942
  83 years ago

• CPC

  • G09B29/104 - involving the optical projection of slides, microfilm or the like

• US Classifications

  • 353 - Optics: image projectors
  • 073 - Measuring and testing
  • 359 - Optical: systems and elements