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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Individual
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Individual
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Priority to ES143152ApriorityCriticalpatent/ES143152A1/en
Publication of ES143152A1publicationCriticalpatent/ES143152A1/en
ES143152A1936-09-121936-09-12
Device for automatic modification of the transmission speed in vehicles, such as velocipedes and the like.
ExpiredES143152A1
(en)