Title:
Diagnosticum
Document Type and Number:
United States Patent 1988634
Inventors:
Stonecypher, David D.
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Publication Date:
01/22/1935
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Referenced by:
Export Citation:
Assignee:
Stonecypher, David D.
Primary Class:
Other Classes:
600/301
International Classes:
G06K21/04; G06K21/00