Blueprint 1905 Ear Trumpet Patent
by Dan Sproul
Title
Blueprint 1905 Ear Trumpet Patent
Artist
Dan Sproul
Medium
Drawing - Digital
Description
A vintage patent drawing features four figures related to an ear trumpet, a device historically used to aid hearing. Each figure details different components and perspectives of the device, complemented by alphanumeric labeling for the parts.
Uploaded
May 10th, 2024
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