Sanitary Telephone-Mouthpiece.
Description:
Patent for new and necessary improvements in sanitary telephone mouthpieces, such as improving overall construction of the telephone mouthpiece so that the mouthpiece is more sanitary, compact, and practical. Illustration and instruction included.
Date:
March 28, 1916
Creator:
Jenkins, Ed Monroe
Item Type:
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Patent
Partner:
UNT Libraries Government Documents Department