Title:
VENTILATED SUSPENDED CEILING STRUCTURE
United States Patent 3475869
US Patent References:
T-runner
- - 3101661
Ventilated ceiling construction
- - 3103868
Ventilated ceiling structure using panel-supporting t-rails with valve controlled slots in pairs for admitting ventilating air
- - 3127827
Panel supporting grid
- - 3207057
T-runner
- - 3101661
Ventilated ceiling construction
- - 3103868
Ventilated ceiling structure using panel-supporting t-rails with valve controlled slots in pairs for admitting ventilating air
- - 3127827
Panel supporting grid
- - 3207057
Inventors:
Jahn, Reinhardt H.
Publication Date:
11/04/1969
View Patent Images:
Export Citation:
Assignee:
CHICAGO METALLIC SASH CO
Primary Class:
Other Classes:
52/220.600, 52/506.060, 454/284
International Classes:
E04B9/02; E04B9/06; E04F17/04; E04B5/55