3676771

Information

• Patent Grant
• 3676771

• References
• Source

• Patent Number

  3,676,771

• Date Filed

  Not available

• Date Issued

  Tuesday, July 11, 1972
  52 years ago

• CPC

  • G01L21/12 - measuring changes in electric resistance of measuring members
  • G01N27/002 - by investigating the work function voltage
  • G01N27/005 - by determining the work function in vacuum

• US Classifications

  • 324 - Electricity: measuring and testing