1483473

Information

• Patent Grant
• 1483473

• References
• Source

• Patent Number

  1,483,473

• Date Filed

  Not available

• Date Issued

  Tuesday, February 12, 1924
  100 years ago

• CPC

  • G01J1/124 - based on the comparison of the intensity of measured light with a comparison source or comparison illuminated surface

• US Classifications

  • 396 - Photography
  • 235 - Registers