Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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ERNESTO HERRMANN
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ERNESTO HERRMANN
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Application filed by ERNESTO HERRMANNfiledCriticalERNESTO HERRMANN
Application grantedgrantedCritical
Publication of FR384677ApublicationCriticalpatent/FR384677A/fr
FR384677D1907-12-041907-12-04Procédé et dispositif pour actionner le mécanisme amplificateur des sons pour les machines parlantes
ExpiredFR384677A
(fr)