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Application filed by Hans Christian Elias AndersenfiledCriticalHans Christian Elias Andersen
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Publication of DK37186CpublicationCriticalpatent/DK37186C/da
DK37186D1925-12-161925-12-16Apparat til Opfangelse af Lyde, som ved dettes Hjælp omsættes til Føleindtryk, der er forskellige for de forskellige Lyde.
DK37186C
(da)