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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Publication date
Priority to NL36277DpriorityCriticalpatent/NL36277C/xx
Application filed by IndividualfiledCriticalIndividual
Priority to DEB148597Dprioritypatent/DE615231C/de
Application grantedgrantedCritical
Publication of DE615231CpublicationCriticalpatent/DE615231C/de
Schaltungsanordnung fuer Fernsprechanlagen mit Selbstbelastungseinrichtungen an den Sprechstellen und die Hoehe einer vorbereiteten Selbstbelastung feststellenden Einrichtungen in der Vermittlungsstelle