3742553

Information

• Patent Grant
• 3742553

• References
• Source

• Patent Number

  3,742,553

• Date Filed

  Not available

• Date Issued

  Tuesday, July 3, 1973
  52 years ago

• CPC

  • E05F3/221 - Mechanical power-locks
  • E05F3/227 - mounted at the top of wings
  • E05Y2900/132 - Doors
  • Y10T16/27 - Checks and closers
  • Y10T16/276 - Liquid
  • Y10T16/2774 - Floor pivot
  • Y10T16/5383 - having transverse helical spring or elastic strip

• US Classifications

  • 016 - Miscellaneous hardware