US2189712A
|
|
Lock for revolving doors
|
US2136323A
|
|
Illumination means for revolving doors
|
US2142310A
|
|
Speed control mechanism
|
US2111182A
|
|
Revolving door mechanism
|
US2125498A
|
|
Pivot lift and hold-down for revolving doors
|
US2114405A
|
|
Revolving door mechanism
|
US2120746A
|
|
Pintle control mechanism for revolving doors
|
US2108720A
|
|
Slot closer
|
US2111773A
|
|
Lower journal for revolving doors
|
US2121512A
|
|
Weatherproof panel structure and method of making same
|
US2055828A
|
|
Revolving door hardware
|
US2105972A
|
|
Trolley for revolving doors
|
US2128531A
|
|
Revolving door speed control
|
US2084781A
|
|
Revolving door construction
|
US2081774A
|
|
Revolving door mechanism
|
US2047468A
|
|
Revolving door speed control
|
US2050589A
|
|
Revolving door hardware
|
US2030547A
|
|
Braceless panic release, roller latching, revolving door hardware
|
US2029318A
|
|
Revolving door speed control
|