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Priority to ES126315UpriorityCriticalpatent/ES126315Y/en
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Publication of ES126315YpublicationCriticalpatent/ES126315Y/en
Channel ditch made of prefabricated concrete elements, characterized, by being composed of conduit channels elements each formed by a prestressed piece, formed longitudinally according to a quadrangular prism one of whose external faces is a flat seat; with external cross section according to a regular trapezoid whose smaller base is a straight line of said flat seat; with internal cross section according to a parabolic curve of vertical major axis and with the extreme edges cut in tongue and groove, complementary to each other. (Machine-translation by Google Translate, not legally binding)
ES126315U1966-12-051966-12-05
ACEQUIA-CANAL OF PREFABRICATED CONCRETE ELEMENTS.
ExpiredES126315Y
(en)