Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Eugen SteigerfiledCriticalEugen Steiger
Application grantedgrantedCritical
Publication of AT78280BpublicationCriticalpatent/AT78280B/de
AT78280D1916-04-261916-04-26Einrichtung zum selbsttätigen Ein- und Ausschalten von Stromkreisen unter Verwendung einer lichtempfindlichen Zelle.
AT78280B
(de)