Hearing Aid
Hearing Aid
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- Description
- Sonotone hearing aid, model 451, serial #162964, with air and bone conduction receivers. Inscriptions read "SONOTONE / REG.U.S.P.O. / U.S. PAT. No 1811638 / 162964 / OTHER PATS. PEND. / MADE IN U.S.A./ NEW YORK This dates from 1937 and was given to the Smithsonian in 1945.
- Ref: Hugo Lieber, “Earphone Transmitter,” U.S. Patent 1,811,638 (June 23, 1931), assigned to Sonotone Corporation.
- Location
- Currently not on view
- Object Name
- Hearing Aid
- hearing aid
- Other Terms
- Hearing Aid; Prostheses
- Physical Description
- plastic (overall material)
- metal (overall material)
- fabric (overall material)
- burgundy (overall color)
- brown (overall color)
- black (overall color)
- Measurements
- overall: 2.5 cm x 7.8 cm; in x 3 1/16 in
- overall: 1 3/4 in x 11 in x 3 7/8 in; 4.445 cm x 27.94 cm x 9.8425 cm
- ID Number
- MG.M-05282
- accession number
- 169582
- catalog number
- M-05282
- serial number
- 162964
- accession number
- 169582
- Credit Line
- Sonotone Corporation
- See more items in
- Medicine and Science: Medicine
- Data Source
- National Museum of American History
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