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Priority to PL98330128ApriorityCriticalpatent/PL189623B1/en
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Publication of PL189623B1publicationCriticalpatent/PL189623B1/en
PL98330128A1998-12-041998-12-04Ball-type coupler in particular that for coupling gooseneck-type semitrailers to their associated tractors
PL189623B1
(en)
Apparatus for locking in as-coupled position a ball-type coupler in particular that used to couple a gooseneck-type semitrailer to its associated tractor