2999931

Information

• Patent Grant
• 2999931

• References
• Source

• Patent Number

  2,999,931

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1961
  63 years ago

• CPC

  • G03H5/00 - Holographic processes or apparatus using particles or using waves other than those covered by groups G03H1/00 or G03H3/00 for obtaining holograms Processes or apparatus for obtaining an optical image from them
  • G01N23/22 - by measuring secondary emission
  • G01N2223/064 - interference of radiation
  • G01N2223/076 - X-ray fluorescence
  • G01N2223/079 - incident electron beam and measuring excited X-rays

• US Classifications

  • 378 - X-ray or gamma ray systems or devices
  • 356 - Optics: measuring and testing