826594

Information

• Patent Grant
• 826594

• References
• Source

• Patent Number

  826,594

• Date Filed

  Not available

• Date Issued

  Tuesday, July 24, 1906
  117 years ago

• CPC

  • G01J5/56 - Electrical features

• US Classifications

  • 356 - Optics: measuring and testing
  • 266 - Metallurgical apparatus
  • 359 - Optical: systems and elements