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Priority claimed from DE1904163346Dexternal-prioritypatent/DE163346C/de
Application filed by Gustav KindlingfiledCriticalGustav Kindling
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Publication of AT23524BpublicationCriticalpatent/AT23524B/de
AT23524D1904-05-021904-11-08Selbstkassierendes Lochbillard mit einem die Benutzungsdauer regelnden, durch Münzeneinwurf auslösbaren Uhrwerk.
AT23524B
(de)
La fabricación de tubos de metal, abiertos por un extremo y cerrados por la punta, la cual es abierta en el momento de usarlos, con un alfiler o otros objetos punzantes.