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EMIL ROTSCH JUN
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EMIL ROTSCH JUN
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Application filed by EMIL ROTSCH JUNfiledCriticalEMIL ROTSCH JUN
Priority to DE1938R0102369priorityCriticalpatent/DE696729C/de
Application grantedgrantedCritical
Publication of DE696729CpublicationCriticalpatent/DE696729C/de
G04F1/00—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers
Selbsttaetig periodisch arbeitender Fluessigkeitszeitschalter mit einem hohlen, mit einer kleinen OEffnung versehenen Tauchkern und einem Steuerstromkreis fuer Solenoidspule und Signalstromkreis