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Indicator holder
United States Patent 1791682
Inventors:
Morrison, Archie T.
Couch, Samuel H.
Publication Date:
02/10/1931
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Download PDF 1791682
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Assignee:
Morrison, Archie T.
Couch, Samuel H.
Primary Class:
40/651
International Classes:
G09F3/18
;
G09F3/08