2070740

Information

• Patent Grant
• 2070740

• References
• Source

• Patent Number

  2,070,740

• Date Filed

  Not available

• Date Issued

  Tuesday, February 16, 1937
  88 years ago

• CPC

  • H01H50/72 - for mercury contact
  • H01H2300/018 - Application transfer between utility and emergency power supply
  • Y10T307/615 - Substitute or emergency source

• US Classifications

  • 307 - Electrical transmission or interconnection systems
  • 246 - Railway switches and signals