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Application filed by Siemens AgfiledCriticalSiemens Ag
Application grantedgrantedCritical
Publication of AT150070BpublicationCriticalpatent/AT150070B/en
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Signalanlage für Hotels, Krankenhäuser od. dgl.
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Signal system for hotels, hospitals or the like.
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AT150070D1935-03-041936-03-03
Signal system for hotels, hospitals or the like.
AT150070B
(en)