894499

Information

• Patent Grant
• 894499

• References
• Source

• Patent Number

  894,499

• Date Filed

  Not available

• Date Issued

  Tuesday, July 28, 1908
  116 years ago

• CPC

  • G01T1/2004 - Scintilloscopes

• US Classifications

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