1812746

Information

• Patent Grant
• 1812746

• References
• Source

• Patent Number

  1,812,746

• Date Filed

  Not available

• Date Issued

  Tuesday, June 30, 1931
  93 years ago

• CPC

  • H01H33/55 - Oil reservoirs or tanks Lowering means therefor
  • H01H2033/568 - with overpressure release

• US Classifications

  • 218 - High-voltage switches with arc preventing or extinguishing devices