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Individual
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Individual
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Priority to ES0060135UpriorityCriticalpatent/ES60135Y/en
Publication of ES60135UpublicationCriticalpatent/ES60135U/en
Application grantedgrantedCritical
Publication of ES60135YpublicationCriticalpatent/ES60135Y/en
An instructive toy characterized by being constituted by an oscillator consisting of a cap of glass in the shape of a cap, in whose mouth it has a metallic ring carrying four small plates of very small weight, arranged as crossed vanes, whose oscillator is placed in balance at the apex of a metallic needle that is installed in a vacuum, inside a spherical glass bell, which, prolonged in its closing mouth by a conical base, sits on a circular plate that gives leveling horizontally correct for the performance of its mission. (Machine-translation by Google Translate, not legally binding)
ES0060135U1957-05-231957-05-23
Instructive toy
ExpiredES60135Y
(en)