Releasable hold-open device for a door closer
Releasable retaining means and fire door control system
Resettable fire link
Resettable, heat actuatable fire link
Resettable, heat actuatable fire link
Self-resetting, cable operated translating drive link
Suspended swivel wheel arrangement for baby carriages and the li
Telescoping heat responsive releasing means
Telescoping heat responsive releasing means
Telescoping heat responsive releasing means
Temperature actuated keying device for use in an automatic door
Two-wheel caster with shield ring