1415639

Information

• Patent Grant
• 1415639

• References
• Source

• Patent Number

  1,415,639

• Date Filed

  Not available

• Date Issued

  Tuesday, May 9, 1922
  102 years ago

• CPC

  • B66B13/04 - of swinging doors

• US Classifications

  • 187 - Elevator, industrial lift truck, or stationary lift for vehicle
  • 160 - Flexible or portable closure, partition, or panel