The Chicago Tribune Historical Image Collection

1 to 2 of 2 pieces in Hearing aids--1910-1920

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Acousticon (General Acoustic Co.)
Title:
Acousticon (General Acoustic Co.)
Published:
1917-10-14
View:
jpg (215 KB) | pdf (1,395 KB) | details
Aid for the deaf
Title:
Aid for the deaf
Published:
1914-03-29
View:
jpg (271 KB) | pdf (3,758 KB) | details
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