1989591

Information

• Patent Grant
• 1989591

• References
• Source

• Patent Number

  1,989,591

• Date Filed

  Not available

• Date Issued

  Tuesday, January 29, 1935
  90 years ago

• CPC

  • E05G5/003 - Entrance control
  • E05Y2900/116 - for sluices
  • E05Y2900/132 - Doors

• US Classifications

  • 109 - Safes, bank protection, or a related device