1808712

Information

• Patent Grant
• 1808712

• References
• Source

• Patent Number

  1,808,712

• Date Filed

  Not available

• Date Issued

  Tuesday, June 2, 1931
  93 years ago

• CPC

  • H01H47/34 - Energising current supplied by magnetic amplifier

• US Classifications

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