AT769BAT769DAAT769BAT 769 BAT769 BAT 769BAT 769D AAT769D AAT 769DAAT 769 BAT769 BAT 769B
Authority
AT
Austria
Application number
Inventor
Arthur Kummer
Hermann Wittich
Original Assignee
Arthur Kummer
Hermann Wittich
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Publication date
Application filed by Arthur Kummer, Hermann WittichfiledCriticalArthur Kummer
Application grantedgrantedCritical
Publication of AT769BpublicationCriticalpatent/AT769B/de