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 filedfiledCritical
Publication of BE718604ApublicationCriticalpatent/BE718604A/xx
Verwendung einer vorrichtung zum ankuppeln von anhaengevorrichtungen an foerderwagen in bergbaubetrieben, vornehmlich im untertaegigen steinkohlebergbau