1739435

Information

• Patent Grant
• 1739435

• References
• Source

• Patent Number

  1,739,435

• Date Filed

  Not available

• Date Issued

  Tuesday, December 10, 1929
  94 years ago

• CPC

  • H01H50/72 - for mercury contact

• US Classifications

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