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Individual
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Individual
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Priority to ES99603UpriorityCriticalpatent/ES99603Y/en
Publication of ES99603UpublicationCriticalpatent/ES99603U/en
Application grantedgrantedCritical
Publication of ES99603YpublicationCriticalpatent/ES99603Y/en
Spring panel, characterized by being constituted by a molded spongy block, which is endowed with an endless number of perforations in the direction of its smallest dimension, which is initial, on both major faces of the block, according to holes of small diameter reaching the interior of the same, so that, sectioned the block according to planes parallel to the major faces, panels of smaller thickness and with a density of perforations are obtained, both superficial and interior, not less than the surface density of the spongy block and no greater than the maximum interior density of the same. (Machine-translation by Google Translate, not legally binding)
ES99603U1963-05-111963-05-11
SPRING PANEL.
ExpiredES99603Y
(en)
Improvements introduced in the manufacture of laminar materials, in particular of tissues. (Machine-translation by Google Translate, not legally binding)