Vertical display
United States Patent 3094971

Inventors:
Guarino, Louis S.
Holt, Pliny G.
Publication Date:
06/25/1963
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Assignee:
Guarino, Louis S.
Holt, Pliny G.
Primary Class:
Other Classes:
340/815.570, 340/975, 73/178R, 33/328
International Classes:
B64D45/00