alb4001746

Edison's electric pen, c1876. Artist: Unknown

Edison's electric pen, c1876. One of the many inventions patented by the prolific American inventor Thomas Alva Edison, the electric pen, patented in 1876 was a form of copying device.
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Title:
Edison's electric pen, c1876. Artist: Unknown
Caption:
Edison's electric pen, c1876. One of the many inventions patented by the prolific American inventor Thomas Alva Edison, the electric pen, patented in 1876 was a form of copying device.
Credit:
Album / Heritage Images / Keystone Archives
Releases:
Model: No - Property: No
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Image size:
4970 x 3516 px | 50.0 MB
Print size:
42.1 x 29.8 cm | 16.6 x 11.7 in (300 dpi)