3798625

Information

• Patent Grant
• 3798625

• References
• Source

• Patent Number

  3,798,625

• Date Filed

  Not available

• Date Issued

  Tuesday, March 19, 1974
  50 years ago

• CPC

  • G01N27/66 - and measuring current or voltage
  • G08B17/11 - using an ionisation chamber for detecting smoke or gas
  • H01J41/08 - with ionisation by means of radioactive substances

• US Classifications

  • 340 - Communications: electrical
  • 250 - Radiant energy