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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pirelli and C SpA
Original Assignee
Pirelli SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pirelli SpAfiledCriticalPirelli SpA
Priority to ES219637ApriorityCriticalpatent/ES219637A1/es
Publication of ES219637A1publicationCriticalpatent/ES219637A1/es
ES219637A1955-01-151955-01-15Un sistema de aislamiento de los pares coaxiales de cables telefónicos para corrientes portadoras de alta frecuencia
ExpiredES219637A1
(es)