1380591

Information

• Patent Grant
• 1380591

• References
• Source

• Patent Number

  1,380,591

• Date Filed

  Not available

• Date Issued

  Tuesday, June 7, 1921
  104 years ago

• CPC

  • B66C23/26 - for use on building sites constructed
  • B66C23/346 - with locking devices

• US Classifications

  • 212 - Traversing hoists
  • 052 - Static structures