Adjustable closer arm
Adjustable delayed-action door closer
Air damper
Apparatus and method for increasing the efficiency of a door clo
Apparatus for automatically closing a swing door
Apparatus for closing sliding doors
Apparatus for holding a door open
Apparatus for opening and closing door
Arrangement for controlling an angularly movable member
Automatic checking mechanism
Automatic door closer
Automatic door closer
Automatic door closer
Automatic door closer and process for assembly of same
Automatic door closer constructed for releasably holding a door
Automatic door closing arrangement
Automatic door closing device
Automatic door closing device
Automatic door closing device
Braking apparatus for door closer