Door actuating mechanism us2800323a en 1951 10 02.
Pneumatic door lock.
Means for manually producing overpressure are rigidly connected to a door.
4 4 out of 5 stars 280.
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.
Free shipping by amazon.
Nat pneumatic co inc.
Cell doors corridors or entrances emergency exit doors.
United states patent 6106032.
Mount closer on all out swinging storm or screen doors by itself or paired with another standard duty closer.
More buying choices 35 97 3 new offers.
Ideal security sk1730w sk1730 pneumatic heavy storm door closer white.
Only 18 left in stock order soon.
4 5 out of 5 stars 290.
Us2778632a en 1955 02 28.
Emco storm door closer kit in white color.
Get it as soon as fri aug 28.
Door operation and control us2733918a en 1956 02 07.
Pittsburgh plate glass co.