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.)
Publication of NL19462CpublicationCriticalpatent/NL19462C/xx
B61G1/00—Couplings comprising interengaging parts of different shape or form and having links, bars, pins, shackles, or hooks as coupling means
B61G1/02—Couplings comprising interengaging parts of different shape or form and having links, bars, pins, shackles, or hooks as coupling means having links or bars coupling or uncoupling by rotating around a transverse horizontal axis