1658840

Information

• Patent Grant
• 1658840

• References
• Source

• Patent Number

  1,658,840

• Date Filed

  Not available

• Date Issued

  Tuesday, February 14, 1928
  96 years ago

• CPC

  • G01K1/24 - by means of compounded strips or plates

• US Classifications

  • 073 - Measuring and testing
  • 374 - Thermal measuring and testing