1381450

Information

• Patent Grant
• 1381450

• References
• Source

• Patent Number

  1,381,450

• Date Filed

  Not available

• Date Issued

  Tuesday, June 14, 1921
  103 years ago

• CPC

  • G01L21/12 - measuring changes in electric resistance of measuring members
  • G01L21/14 - using thermo-couples

• US Classifications

  • 073 - Measuring and testing
  • 324 - Electricity: measuring and testing
  • 374 - Thermal measuring and testing