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Individual
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Individual
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Priority to ES0066312UpriorityCriticalpatent/ES66312Y/en
Publication of ES66312UpublicationCriticalpatent/ES66312U/en
Application grantedgrantedCritical
Publication of ES66312YpublicationCriticalpatent/ES66312Y/en
Holding Or Fastening Of Disk On Rotational Shaft
(AREA)
Abstract
An improved phonograph disc, characterized essentially by comprising elements in suitable number, shape and dimensions, which are respectively located in the smooth inner bands of the disc, in equidistant and regular form, these superposed parts having the same height with respect to the base of containment and acting as a protective element of the helical groove of the corresponding immediate disc and as a fixed or eventual retaining element and drag the projections of the integral disc in its functional phase, said parts being fixed by the most appropriate procedure. (Machine-translation by Google Translate, not legally binding)
ES0066312U1958-05-261958-05-26
Perfected phono record
ExpiredES66312Y
(en)
Improvements introduced in the manufacture of covers for objects in the form of discs or plate (Machine-translation by Google Translate, not legally binding)