1392039

Information

• Patent Grant
• 1392039

• References
• Source

• Patent Number

  1,392,039

• Date Filed

  Not available

• Date Issued

  Tuesday, September 27, 1921
  102 years ago

• CPC

  • H02K47/10 - with booster machine on the ac side

• US Classifications

  • 363 - Electric power conversion systems