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Priority to ES1969151038UpriorityCriticalpatent/ES151038Y/en
Publication of ES151038UpublicationCriticalpatent/ES151038U/en
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Publication of ES151038YpublicationCriticalpatent/ES151038Y/en
Improved plug for drains, characterized by being constituted by a piece of elastic material of generally frusto-conical shape, which in its upper base has been provided the placement of a plate of rigid material of equal dimensions to said surface, whose plate is provided with holes in all its periphery regularly and uniformly distributed, which are overlapped by a flange provided with teeth internally coinciding with the said holes and which are welded to the surface of the upper base of the truncated cone when making the cap, since it is poured on the mold the molten material and both pieces form a single one, that for the separation of both parts it would be necessary to break both, also in its central area it has been foreseen by the same procedure the embellishment of the pivot on which the chain of the shooter acts. (Machine-translation by Google Translate, not legally binding)
ES1969151038U1969-08-051969-08-05
PERFECTED PLUG FOR DRAINS.
ExpiredES151038Y
(en)
A method for molding in a permanent mold a metal object of uniform surface relatively smooth. (Machine-translation by Google Translate, not legally binding)