2474906

Information

• Patent Grant
• 2474906

• References
• Source

• Patent Number

  2,474,906

• Date Filed

  Not available

• Date Issued

  Tuesday, July 5, 1949
  75 years ago

• CPC

  • G01N21/21 - Polarisation-affecting properties
  • G01B11/046 - for measuring width
  • B65H2557/516 - Polarized light

• US Classifications

  • 356 - Optics: measuring and testing
  • 250 - Radiant energy