1927 Blueprint Otoscope Patent Drawing by Dan Sproul

1927 Blueprint Otoscope Patent

by Dan Sproul

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Title

1927 Blueprint Otoscope Patent

Artist

Dan Sproul

Medium

Drawing - Digital

Description

A vintage-style patent blueprint displays the design and components of an otoscope with annotations and reference numbers. Dated July 19, 1927, the blueprint attributes the invention to H.L. de Zeng, showcasing various views and details of the medical device used for examining ears.

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May 10th, 2024

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