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Application filed by Joergen Johannes Hvolmgaard, Erik Emil Christense OvergaardfiledCriticalJoergen Johannes Hvolmgaard
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Publication of DK46702CpublicationCriticalpatent/DK46702C/da
DK46702D1931-09-221931-09-22Kost til Indstillelig Anbringelse i Cykelskærme og bestemt til at hindre Ophobning af Sne eller Snavs i disse.
DK46702C
(da)
Perfectionnements à la télévision, notamment à la télécinématographie par télévision, aux procédés et appareils utilisés dans ces techniques ou techniques similaires