Ceiling access opening and bracket therefor
United States Patent 3276179

Inventors:
Rallis, James M.
Publication Date:
10/04/1966
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Assignee:
Rallis, James M.
Primary Class:
52/506.090
Other Classes:
248/300, 52/508, 52/779, 52/712
International Classes:
E04B9/24; E04B9/22
US Patent References:
2073036Wall assembly
2303271Ceiling structure
2890583Openable suspended ceilings
3023866Panel assembly
3055469Suspended ceiling
3094201Ceilings and the like
3204383Metal pan acoustical ceiling
Foreign References:
FR1123293A
GB682550A