3474886

Information

• Patent Grant
• 3474886

• References
• Source

• Patent Number

  3,474,886

• Date Filed

  Not available

• Date Issued

  Tuesday, October 28, 1969
  55 years ago

• CPC

  • B66B5/10 - electrical
  • G01P1/106 - by comparing the time duration between two impulses with a reference time

• US Classifications

  • 187 - Elevator, industrial lift truck, or stationary lift for vehicle
  • 318 - Electricity: motive power systems