1971204

Information

• Patent Grant
• 1971204

• References
• Source

• Patent Number

  1,971,204

• Date Filed

  Not available

• Date Issued

  Tuesday, August 21, 1934
  90 years ago

• CPC

  • H02P9/20 - due to variation of continuously-variable ohmic resistance

• US Classifications

  • 338 - Electrical resistors