1994370

Information

• Patent Grant
• 1994370

• References
• Source

• Patent Number

  1,994,370

• Date Filed

  Not available

• Date Issued

  Tuesday, March 12, 1935
  89 years ago

• CPC

  • H02J7/20 - due to variation of continuously variable ohmic resistor

• US Classifications

  • 338 - Electrical resistors
  • 320 - Electricity: battery or capacitor charging or discharging
  • 322 - Electricity: single generator systems