1645404

Information

• Patent Grant
• 1645404

• References
• Source

• Patent Number

  1,645,404

• Date Filed

  Not available

• Date Issued

  Tuesday, October 11, 1927
  97 years ago

• CPC

  • G01N7/12 - the diffusion being followed by combustion or catalytic oxidation

• US Classifications

  • 422 - Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing
  • 073 - Measuring and testing
  • 340 - Communications: electrical