1731349

Information

• Patent Grant
• 1731349

• References
• Source

• Patent Number

  1,731,349

• Date Filed

  Not available

• Date Issued

  Tuesday, October 15, 1929
  95 years ago

• CPC

  • B66B13/04 - of swinging doors
  • Y10T74/1555 - Rotary driven element

• US Classifications

  • 187 - Elevator, industrial lift truck, or stationary lift for vehicle
  • 074 - Machine element or mechanism