3775616

Information

• Patent Grant
• 3775616

• References
• Source

• Patent Number

  3,775,616

• Date Filed

  Not available

• Date Issued

  Tuesday, November 27, 1973
  51 years ago

• CPC

  • G01N27/66 - and measuring current or voltage
  • G01T7/125 - Alarm- or controlling circuits using ionisation chambers, proportional counters or Geiger-Mueller tubes, also functioning as UV detectors
  • G08B17/11 - using an ionisation chamber for detecting smoke or gas
  • G08B17/113 - Constructional details

• US Classifications

  • 250 - Radiant energy
  • 340 - Communications: electrical