3803482

Information

• Patent Grant
• 3803482

• References
• Source

• Patent Number

  3,803,482

• Date Filed

  Not available

• Date Issued

  Tuesday, April 9, 1974
  50 years ago

• CPC

  • H01H47/20 - for producing frequency-selective operation of the relay
  • G01B7/105 - for measuring thickness of coating
  • G01R9/06 - magnetically driven
  • G01R19/16509 - using electromagnetic relays
  • G01R33/02 - Measuring direction or magnitude of magnetic fields or magnetic flux

• US Classifications

  • 324 - Electricity: measuring and testing