Title:
Sign
United States Patent 2010004
Inventors:
Berggren, John L.
Publication Date:
08/06/1935
Export Citation:
Click for automatic bibliography generation
Assignee:
Berggren, John L.
Primary Class:
40/480
Other Classes:
362/255, 362/277, 362/373, 362/812
International Classes:
G09F23/00
View Patent Images:
Download PDF 2010004        PDF help