Nasa de proposito general (Machine-translation by Google Translate, not legally binding)

摘要

Nasa of general purpose, characterized by being constituted by two end rings kept separated from each other by a spring, of suitable characteristics, the whole being covered by a mesh, which would be completely closed by one of the sides on the rear ring and on the front ring in a truncated cone shape on another ring of smaller size that would constitute the mouth of entry to the nasa. (Machine-translation by Google Translate, not legally binding)