ES90327A1 -
Device to ensure in a continuous automatic way, the synchronism between a gramophone and a cinematographic projection apparatus.
- Google Patents
Device to ensure in a continuous automatic way, the synchronism between a gramophone and a cinematographic projection apparatus.
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Individual
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Individual
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Priority to ES90327ApriorityCriticalpatent/ES90327A1/en
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ES90327A1924-07-301924-07-30
Device to ensure in a continuous automatic way, the synchronism between a gramophone and a cinematographic projection apparatus.
ExpiredES90327A1
(en)