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 ES7403ApriorityCriticalpatent/ES7403A1/en
Publication of ES7403A1publicationCriticalpatent/ES7403A1/en
ES7403A1887-09-291887-09-29
A system of signals and devices that aims to establish day and night communications between ships and the land.
ExpiredES7403A1
(en)