1399145

Information

• Patent Grant
• 1399145

• References
• Source

• Patent Number

  1,399,145

• Date Filed

  Not available

• Date Issued

  Tuesday, December 6, 1921
  103 years ago

• CPC

  • E05F5/04 - hand-operated
  • E05F2005/043 - operated by centrifugal action at high closing speed
  • E05Y2900/132 - Doors
  • Y10T16/615 - Inertia

• US Classifications

  • 016 - Miscellaneous hardware