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Individual
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Individual
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Priority to ES411326ApriorityCriticalpatent/ES411326A2/en
Publication of ES411326A2publicationCriticalpatent/ES411326A2/en
"IMPROVEMENTS INTRODUCED IN THE OBJECT OF MAIN PATENT No. 411,241 FOR" HYDRAULIC CRANE ", which is characterized because on the end of the same helical arm of the crane in question, is mounted a second telescopic arm in line, which acts independently of the first, in order to increase the action circuit by increasing its length in the corresponding boom head. (Machine-translation by Google Translate, not legally binding)
ES411326A1973-02-061973-02-06Grua hidráulica. (Machine-translation by Google Translate, not legally binding)
ExpiredES411326A2
(en)
Improvements introduced in the object of the main patent num. 420.250, granted 12-9-75, by: improvements in the carrier-vehicle trailers. (Machine-translation by Google Translate, not legally binding)