1779574

Information

• Patent Grant
• 1779574

• References
• Source

• Patent Number

  1,779,574

• Date Filed

  Not available

• Date Issued

  Tuesday, October 28, 1930
  94 years ago

• CPC

  • G01J1/48 - using chemical effects

• US Classifications

  • 356 - Optics: measuring and testing
  • 250 - Radiant energy
  • 315 - Electric lamp and discharge devices: systems
  • 429 - Chemistry: electrical current producing apparatus, product, and process