1967944

Information

• Patent Grant
• 1967944

• References
• Source

• Patent Number

  1,967,944

• Date Filed

  Not available

• Date Issued

  Tuesday, July 24, 1934
  90 years ago

• CPC

  • H01H50/72 - for mercury contact

• US Classifications

  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets
  • 246 - Railway switches and signals