2835821

Information

• Patent Grant
• 2835821

• References
• Source

• Patent Number

  2,835,821

• Date Filed

  Not available

• Date Issued

  Tuesday, May 20, 1958
  66 years ago

• CPC

  • G01V5/04 - specially adapted for well-logging
  • G01T1/205 - the detector being a gas

• US Classifications

  • 250 - Radiant energy
  • 313 - Electric lamp and discharge devices