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  1. 40400281280
    Author(s):Poras, J.
    Title:Das Vibraphon, ein neuer Hörapparat.
    Subject(s):Deaf [ including hard-of-hearing ] Apparatus [ Hearing aids ]
    Journal Title Abbreviation:Wien. med. Wschr.
    Date of Publication:1936
    Pagination:86: 419.
    Language:German
    Type of Resource:Analytic
    Series/Volume/Page:Series 4/Volume 4/Page 28
  2. 40400281210
    Author(s):Oppikofer
    Title:Demonstration einer Sammlung schwindelhafter Ohrapparate.
    Subject(s):Deaf [ including hard-of-hearing ] Apparatus [ Hearing aids ]
    Journal Title Abbreviation:Zschr. Laryng.
    Date of Publication:1926–27
    Pagination:15: 179.
    Language:German
    Type of Resource:Analytic
    Series/Volume/Page:Series 4/Volume 4/Page 28
  3. 40400281420
    Author(s):Sell
    Title:Die Bedeutung der Kopplung zwischen Tonquelle und Ohr.
    Subject(s):Deaf [ including hard-of-hearing ] Apparatus [ Hearing aids ]
    Journal Title Abbreviation:Zschr. Hals &c. Heilk.
    Date of Publication:1927–28
    Pagination:455–8 [Discussion] 476–85.
    Language:German
    Type of Resource:Analytic
    Series/Volume/Page:Series 4/Volume 4/Page 28
  4. 40400281130
    Author(s):Nadoleczny, M.
    Title:Die Ueberlegenheit des künstlichen Trommelfells gegenüber den Hörapparaten nebst kritischen Bemerkungen zur quantitativen Hörprüfung mit der Tonreihe und dem Otoaudion.
    Subject(s):Deaf [ including hard-of-hearing ] Apparatus [ Hearing aids ]
    Journal Title Abbreviation:Zschr. Hals &c. Heilk.
    Date of Publication:1933–34
    Pagination:35: 472–82.
    Language:German
    Type of Resource:Analytic
    Series/Volume/Page:Series 4/Volume 4/Page 28
  5. 40400281200
    Author(s):Ohma, S.
    Title:Die akustische Untersuchung elektrischer Hörapparate.
    Subject(s):Deaf [ including hard-of-hearing ] Apparatus [ Hearing aids ]
    Journal Title Abbreviation:Acta otolar.
    Place of Publication:Stockh.
    Date of Publication:1922
    Pagination:4: 405–14.
    Language:German
    Type of Resource:Analytic
    Series/Volume/Page:Series 4/Volume 4/Page 28
  6. 40400281950
    Author(s):Heindl, A.
    Title:Die besondere Methode der Schwerhörigenschule.
    Subject(s):Deaf [ including hard-of-hearing ] Education
    Journal Title Abbreviation:Eos
    Place of Publication:Wien
    Date of Publication:1929
    Pagination:21: 85–92.
    Language:German
    Type of Resource:Analytic
    Series/Volume/Page:Series 4/Volume 4/Page 28
  7. 40400282020
    Author(s):Muck, O.
    Title:Ein Hilfsmittel für den Ableseunterricht der Schwerhörigen.
    Subject(s):Deaf [ including hard-of-hearing ] Education
    Journal Title Abbreviation:Zschr. Hals &c. Heilk.
    Date of Publication:1924–25
    Pagination:9: 545–7.
    Language:German
    Type of Resource:Analytic
    Series/Volume/Page:Series 4/Volume 4/Page 28
  8. 40400281360
    Author(s):Schaeffer, K. L.
    Title:Ein kontinuierlicher Resonatoren-Apparat.
    Subject(s):Deaf [ including hard-of-hearing ] Apparatus [ Hearing aids ]
    Journal Title Abbreviation:Beitr. Anat. Ohr.
    Date of Publication:1909
    Pagination:3: 132–51.
    Language:German
    Type of Resource:Analytic
    Series/Volume/Page:Series 4/Volume 4/Page 28
  9. 40400281060
    Author(s):Maurer, S.
    Title:Ein neuer Weg zur Behebung der Schwerhörigkeit; eine neuartige Hörprothese.
    Subject(s):Deaf [ including hard-of-hearing ] Apparatus [ Hearing aids ]
    Journal Title Abbreviation:Wien. med. Wschr.
    Date of Publication:1935
    Pagination:85: 932.
    Language:German
    Type of Resource:Analytic
    Series/Volume/Page:Series 4/Volume 4/Page 28
  10. 40400281250
    Author(s):Perwitzschky
    Title:Ein neues Prinzip der Hörverbesserung.
    Subject(s):Deaf [ including hard-of-hearing ] Apparatus [ Hearing aids ]
    Journal Title Abbreviation:Zschr. Hals &c. Heilk.
    Date of Publication:1925
    Pagination:12: 593–602.
    Language:German
    Type of Resource:Analytic
    Series/Volume/Page:Series 4/Volume 4/Page 28
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