1693984

Information

• Patent Grant
• 1693984

• References
• Source

• Patent Number

  1,693,984

• Date Filed

  Not available

• Date Issued

  Tuesday, December 4, 1928
  96 years ago

• CPC

  • G01K5/08 - Capillary tubes

• US Classifications

  • 374 - Thermal measuring and testing
  • 116 - Signals and indicators
  • 359 - Optical: systems and elements