Front:
T. A. EDISON.
Electric-Lamp.
No. 223,898.
Patented Jan. 27, 1880.
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1.
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Inventar
Thomas U. Ctisom
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GtPmakny
(UY,
Back:
Electric Lamp Patent Drawing
T.A. Edison, No. 223,898
United States Patent and Trademark Office
Alexandria, VA
place
stamp
here
National Inventors Hall of Fame Foundation. Made in USA.
