An armed and special mold for manufacturing hollow ground blocks of arcillosa that once cooked can be decomposed in various useful elements in all kinds of constructions (Machine-translation by Google Translate, not legally binding)

摘要

A special and armed mold to make hollow blocks of clay soil that once cooked can be decomposed into several elements usable in all kinds of buildings characterized by having a conical nozzle with corners in its upper part and wider are open in the form of arcs semicircular. (Machine-translation by Google Translate, not legally binding)