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Individual
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Individual
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Priority to ES1967133425UpriorityCriticalpatent/ES133425Y/en
Publication of ES133425UpublicationCriticalpatent/ES133425U/en
Application grantedgrantedCritical
Publication of ES133425YpublicationCriticalpatent/ES133425Y/en
Improved sprung mattress, characterized by internally structured based on a plurality of biconical springs grouped in rows inside a frame formed perimetrally on both sides by rigid springs, the rows arranged tangentially two by two, and being secured by the provision of transverse rigid springs in which they are inserted and which, at the same time, serve as reinforcement to the frame. (Machine-translation by Google Translate, not legally binding)
ES1967133425U1967-10-251967-10-25
IMPROVED SPRING MATTRESS.
ExpiredES133425Y
(en)