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.)
Telephon-Apparat-Fabrik E Zwietusch & Co GmbH
Original Assignee
Telephon-Apparat-Fabrik E Zwietusch & Co GmbH
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 Telephon-Apparat-Fabrik E Zwietusch & Co GmbHfiledCriticalTelephon-Apparat-Fabrik E Zwietusch & Co GmbH
Publication of GB346156ApublicationCriticalpatent/GB346156A/en