646721

Information

• Patent Grant
• 646721

• References
• Source

• Patent Number

  646,721

• Date Filed

  Not available

• Date Issued

  Tuesday, April 3, 1900
  124 years ago

• CPC

  • B66B1/462 - Mechanical or piezoelectric input devices
  • B66B3/004 - Mechanical devices that can be illuminated

• US Classifications

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