ES71769A1 - Improvements in telephone lines. - Google Patents

Improvements in telephone lines.

Info

Publication number
ES71769A1
ES71769A1 ES71769A ES71769A ES71769A1 ES 71769 A1 ES71769 A1 ES 71769A1 ES 71769 A ES71769 A ES 71769A ES 71769 A ES71769 A ES 71769A ES 71769 A1 ES71769 A1 ES 71769A1
Authority
ES
Spain
Prior art keywords
telephone lines
telephone
lines
Prior art date
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.)
Expired
Application number
ES71769A
Other languages
Spanish (es)
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.)
Automatic Electric Co
Original Assignee
Automatic Electric Co
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 Automatic Electric Co filed Critical Automatic Electric Co
Priority to ES71769A priority Critical patent/ES71769A1/en
Publication of ES71769A1 publication Critical patent/ES71769A1/en
Expired legal-status Critical Current

Links

ES71769A 1919-12-18 1919-12-18 Improvements in telephone lines. Expired ES71769A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES71769A ES71769A1 (en) 1919-12-18 1919-12-18 Improvements in telephone lines.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES71769A ES71769A1 (en) 1919-12-18 1919-12-18 Improvements in telephone lines.

Publications (1)

Publication Number Publication Date
ES71769A1 true ES71769A1 (en) 1920-03-01

Family

ID=64241972

Family Applications (1)

Application Number Title Priority Date Filing Date
ES71769A Expired ES71769A1 (en) 1919-12-18 1919-12-18 Improvements in telephone lines.

Country Status (1)

Country Link
ES (1) ES71769A1 (en)

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