1855757

Information

• Patent Grant
• 1855757

• References
• Source

• Patent Number

  1,855,757

• Date Filed

  Not available

• Date Issued

  Tuesday, April 26, 1932
  92 years ago

• CPC

  • G01L9/0094 - using variations in inductance

• US Classifications

  • 340 - Communications: electrical
  • 073 - Measuring and testing
  • 318 - Electricity: motive power systems
  • 324 - Electricity: measuring and testing