3783978

Information

• Patent Grant
• 3783978

• References
• Source

• Patent Number

  3,783,978

• Date Filed

  Not available

• Date Issued

  Tuesday, January 8, 1974
  51 years ago

• CPC

  • B66B7/028 - with earthquake protection devices
  • B66B5/022 - where the abnormal operating condition is caused by a natural event
  • B66B7/046 - Rollers
  • B66B7/048 - including passive attenuation system for shocks, vibrations

• US Classifications

  • 187 - Elevator, industrial lift truck, or stationary lift for vehicle
  • 200 - Electricity: circuit makers and breakers