Dust-free cabinet
United States Patent 3148956
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Inventors:
Hetherwick, Frederic B.
Hayner, Phillip A.
Publication Date:
09/15/1964
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Assignee:
PLASTIGAGE CORP
Primary Class:
34/82
Other Classes:
34/88, 312/114, 34/231, 55/DIG.018, 55/DIG.029, 55/473
International Classes:
B25H1/20; F24F3/16; B25H1/00
US Patent References:
3115719Multiple-unit display cabinet with continuous coextensive illuminated sign