Title:
Sign post
Document Type and Number:
United States Patent 2814140

Inventors:
Ellis, Horace R.
Publication Date:
11/26/1957
View Patent Images:
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Assignee:
Ellis, Horace R.
Primary Class:
Other Classes:
40/617
International Classes:
G09F7/22; G09F7/18
US Patent References:
Foreign References:
DE568264C




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