More buying choices 35 97 3 new offers.
Pneumatic door lock.
Door operation and control us2733918a en 1956 02 07.
Nat pneumatic co inc.
Use a single closer for light to medium weighted doors or a pair one on top and one at the bottom for heavier full view storm and screen doors.
Us2778632a en 1955 02 28.
Get it as soon as fri aug 28.
Means for manually producing overpressure are rigidly connected to a door.
Mount closer on all out swinging storm or screen doors by itself or paired with another standard duty closer.
Only 18 left in stock order soon.
Emco storm door closer kit in white color.
Door actuating mechanism us2800323a en 1951 10 02.
Cell doors corridors or entrances emergency exit doors.
4 4 out of 5 stars 280.
United states patent 6106032.
Pittsburgh plate glass co.
The invention concerns a lock for doors or operationally similar structures the lock mechanism being manually actuated with the aid of pneumatic means without the need for external energy.
4 5 out of 5 stars 290.
Vehicle door lock us2710186a en 1948 07 21.