1981195

Information

• Patent Grant
• 1981195

• References
• Source

• Patent Number

  1,981,195

• Date Filed

  Not available

• Date Issued

  Tuesday, November 20, 1934
  90 years ago

• CPC

  • G01N3/064 - with hydraulic indicating or recording means

• US Classifications

  • 073 - Measuring and testing