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
Priority to PL17934475ApriorityCriticalpatent/PL99646B1/en
Publication of PL99646B1publicationCriticalpatent/PL99646B1/en
PL17934475A1975-04-041975-04-04
METHOD AND DEVICE FOR THE INTERIOR TRANSPORT OF ELEMENTS OF DIFFERENT WEIGHT AND SIZE, ESPECIALLY VENTILATION ELEMENTS
PL99646B1
(en)