2720570

Information

• Patent Grant
• 2720570

• References
• Source

• Patent Number

  2,720,570

• Date Filed

  Not available

• Date Issued

  Tuesday, October 11, 1955
  69 years ago

• CPC

  • H01C10/12 - by changing surface pressure between resistive masses or resistive and conductive masses
  • Y10S388/927 - Which varies resistance of motor circuit

• US Classifications

  • 338 - Electrical resistors
  • 073 - Measuring and testing
  • 388 - Electricity: motor control systems