1273707

Information

• Patent Grant
• 1273707

• References
• Source

• Patent Number

  1,273,707

• Date Filed

  Not available

• Date Issued

  Tuesday, July 23, 1918
  106 years ago

• CPC

  • G01K5/28 - the material being a gas

• US Classifications

  • 374 - Thermal measuring and testing
  • D10 - Measuring, testing, or signalling instruments