3521728

Information

• Patent Grant
• 3521728

• References
• Source

• Patent Number

  3,521,728

• Date Filed

  Not available

• Date Issued

  Tuesday, July 28, 1970
  54 years ago

• CPC

  • E04H6/188 - using only vertical transport means

• US Classifications

  • 187 - Elevator, industrial lift truck, or stationary lift for vehicle
  • 414 - Material or article handling