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Priority to ES103169UpriorityCriticalpatent/ES103169Y/en
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Investigating Strength Of Materials By Application Of Mechanical Stress
(AREA)
Abstract
Test tube with filling device characterized by being formed by a cylindrical body of transparent material that bears a graduation laterally and that in its upper part has a series of frustoconical bodies joined from the material itself and with a degree of flexibility that allows its axial deformation by pressure and its subsequent recovery in the manner of a bellows, its upper end having a cylindrical projection threaded externally on this described body. (Machine-translation by Google Translate, not legally binding)
ES103169U1963-12-171963-12-17
Test tube with filling device
ExpiredES103169Y
(en)