1485578

Information

• Patent Grant
• 1485578

• References
• Source

• Patent Number

  1,485,578

• Date Filed

  Not available

• Date Issued

  Tuesday, March 4, 1924
  100 years ago

• CPC

  • E05F1/008 - by time control
  • Y10T16/635 - Sash and cord
  • Y10T74/118 - Winding knob trip [e.g., alarm mechanism]

• US Classifications

  • 049 - Movable or removable closures
  • 016 - Miscellaneous hardware
  • 074 - Machine element or mechanism
  • 454 - Ventilation