1564933

Information

• Patent Grant
• 1564933

• References
• Source

• Patent Number

  1,564,933

• Date Filed

  Not available

• Date Issued

  Tuesday, December 8, 1925
  99 years ago

• CPC

  • G01R1/38 - Arrangements for altering the indicating characteristic
  • H01F7/02 - Permanent magnets [PM]

• US Classifications

  • 374 - Thermal measuring and testing
  • 236 - Automatic temperature and humidity regulation
  • 324 - Electricity: measuring and testing