1525529

Information

• Patent Grant
• 1525529

• References
• Source

• Patent Number

  1,525,529

• Date Filed

  Not available

• Date Issued

  Tuesday, February 10, 1925
  100 years ago

• CPC

  • G01J1/54 - by observing photo-reactions between gases
  • H01H29/02 - Details

• US Classifications

  • 200 - Electricity: circuit makers and breakers
  • 250 - Radiant energy
  • 362 - Illumination
  • 429 - Chemistry: electrical current producing apparatus, product, and process