1822232

Information

• Patent Grant
• 1822232

• References
• Source

• Patent Number

  1,822,232

• Date Filed

  Not available

• Date Issued

  Tuesday, September 8, 1931
  92 years ago

• CPC

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

• US Classifications

  • 322 - Electricity: single generator systems
  • 012 - Boot and shoe making