DISPLAY DEVICE
United States Patent 3535030

Inventors:
Miller, Daniel D.
Publication Date:
10/20/1970
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Assignee:
DOBAN LABS INC
Primary Class:
353/36
Other Classes:
353/65, 353/74
International Classes:
G08B5/36; G09F9/40; G08B5/22; G03B21/06; G03B21/26
US Patent References:
3370291Indicia wheel display device having a selectively rotated wheel shaft
Foreign References:
GB195660A




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