Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Legrain Industrial SA
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Legrain Industrial SA
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Application filed by Legrain Industrial SAfiledCriticalLegrain Industrial SA
Priority to ES89671UpriorityCriticalpatent/ES89671Y/en
Publication of ES89671UpublicationCriticalpatent/ES89671U/en
Application grantedgrantedCritical
Publication of ES89671YpublicationCriticalpatent/ES89671Y/en
An apparatus for checking the state of the gramophonic needles, characterized in that it comprises a casing having a window covered by a translucent screen and inside which a light source and an optical system are housed that direct the rays emitted by the screen to the screen, arranging in a suitable point of this casing a hole for introducing the end of the needle to be controlled, which is interposed in the path of the light rays, causing a corresponding shadow that is projected on the screen, calculating the optical scheme so that this Shade scope on the screen a size that allows its convenient inspection. (Machine-translation by Google Translate, not legally binding)
ES89671U1961-10-211961-10-21
Apparatus for checking the state of gramophone needles
ExpiredES89671Y
(en)
An electronic apparatus pra produce the stop and luminous warning in gills and macheras machines (Machine-translation by Google Translate, not legally binding)
Procedure to obtain the appearance of the relief in cinematographic projections with the optical devices applicable to the machines of seeing and projection and special screen for its application (Machine-translation by Google Translate, not legally binding)