ES173171U - Elastic device for the construction of tubular concrete ducts. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Elastic device for the construction of tubular concrete ducts. (Machine-translation by Google Translate, not legally binding)
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On-Site Construction Work That Accompanies The Preparation And Application Of Concrete
(AREA)
Abstract
Elastic device for the construction of tubular concrete conduits, characterized by being constituted by a body of elongated section on its axis, built in flexible waterproof material, this body has oriented on one of its ends a circular crown equipped with a set of pulleys free of twist in which endless straps that are attached to the entire outer and inner contour surface of the flexible body are connected. (Machine-translation by Google Translate, not legally binding)
ES1971173171U1971-10-091971-10-09
ELASTIC DEVICE FOR THE CONSTRUCTION OF CONCRETE TUBULAR DUCTS.
ExpiredES173171Y
(en)
A provision constituted by a cable and a carrier cord, which extends in the same direction and linked to him (Machine-translation by Google Translate, not legally binding)