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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Shelbourne Sidney Fortescue
Original Assignee
Shelbourne Sidney Fortescue
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Application filed by Shelbourne Sidney FortescuefiledCriticalShelbourne Sidney Fortescue
Priority to ES4173ApriorityCriticalpatent/ES4173A1/en
Publication of ES4173A1publicationCriticalpatent/ES4173A1/en
ES4173A1884-04-221884-04-22
An improved procedure for constructing electrical cables and electrical communication lines, preventing induction in them.
ExpiredES4173A1
(en)
Improved procedure to make telephone transmissions clearer and more perceptible and avoid any interruption in the electric current, by means of improvements made to that effect in telephone transmitters.