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Osram GmbH
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Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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Application filed by Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbHfiledCriticalPatent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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Publication of FR1087684ApublicationCriticalpatent/FR1087684A/en