Title:
Pen-gripping device
United States Patent 1669036


Inventors:
Blackman, Horace L.
Hjorth, Oscar B.
Application Number:
US13884126A
Publication Date:
05/08/1928
Filing Date:
10/01/1926
Assignee:
PARKER PEN CO
Primary Class:
International Classes:
B43M99/00
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