2701312

Information

• Patent Grant
• 2701312

• References
• Source

• Patent Number

  2,701,312

• Date Filed

  Not available

• Date Issued

  Tuesday, February 1, 1955
  70 years ago

• CPC

  • G01T1/18 - with counting-tube arrangements
  • F24F2011/0024 - Tobacco smoke
  • Y02B30/78 - Ventilation adapted to air quality

• US Classifications

  • 250 - Radiant energy