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Individual
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Individual
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Priority to ES0074379UpriorityCriticalpatent/ES74379U/en
Publication of ES74379UpublicationCriticalpatent/ES74379U/en
A manual inflation pump, characterized in that it consists of a flexible frustum-shaped body in the form of a bellows, the bases of which are rigid plates that carry the inlet and outlet orifices respectively, and unidirectional membrane valves; an opposing spring resting on both bases is comprised within the flexible body, there also being a folding flange which retains the flexible body in a compressed position. (Machine-translation by Google Translate, not legally binding)
ES0074379U1959-06-041959-06-04A manual inflation pump (Machine-translation by Google Translate, not legally binding)
PendingES74379U
(en)