Actuators
Apparatus for closing fireproof doors
Apparatus for closing fireproof doors
Arrangement for releasing a fire curtain in a theater
Device for assisting the opening of a door
Device for automatically closing windows
Door having improved closing and latching systems
Door locking device for a door closer having a fire actuated mec
Emergency air vent structure
Emergency door opening actuator
Emergency door with retractable nose piece, interiorly mounted o
Fire door closure reset system
Fire-resistant door
Fire-resistant door
Heat effect window
Heat releasable window guard
Magnetic smoke and fire shield
Processed peat poultry litter for confined enclosures
Release mechanism for a door spring
Remotely controllable vent door