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United States Patent 2006843

Inventors:
Russell, Thomas W.
Publication Date:
07/02/1935
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Assignee:
Russell, Thomas W.
Primary Class:
248/205.500
Other Classes:
224/277, 160/DIG.013, 24/DIG.008, 24/326
International Classes:
B43K23/00; G09F1/10; G09F3/08; G09F1/00