1978331

Information

• Patent Grant
• 1978331

• References
• Source

• Patent Number

  1,978,331

• Date Filed

  Not available

• Date Issued

  Tuesday, October 23, 1934
  90 years ago

• CPC

  • G01P5/065 - with mechanical coupling to the indicating device

• US Classifications

  • 073 - Measuring and testing
  • 116 - Signals and indicators
  • 235 - Registers