A mobile elevation and assembly device for mºstiles, compounds of several individual parts (Machine-translation by Google Translate, not legally binding)
ES229534A1
Improvements introduced in the manufacture of sections of posts as constructive elements to make posts of all classes (Machine-translation by Google Translate, not legally binding)
US2998106A
Mobile elevating and erecting device for masts assembled from separate sections
GB813753A
Improvements in or relating to wheeled elevating and erecting devices for masts assembled from separate sections
CA633784A
Mast section
CA636254A
Mobile elevating and erecting device for masts assembled from separate sections
