Ceiling tile mounting construction
United States Patent 2993240

Inventors:
Ericson, Walter M.
Publication Date:
07/25/1961
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Assignee:
AIRSON CO INC
Primary Class:
52/778
Other Classes:
52/506.090, 52/477, 52/779, 454/297
International Classes:
E04B9/02; E04B9/24; F24F7/10; E04B9/22
US Patent References:
2239315Extensible centering and like support
2270268Acoustical assembly
2318092Building construction
2389171Means for assembling construction units
2578600Insulation device
2632535Joint between metal members
2648102Ceiling construction
2767440Suspended ceiling construction
2858584Spline for hanging tile
Foreign References:
GB676264A