ES115988A1 - IMPROVEMENTS IN CABLE TELEPHONY. - Google Patents

IMPROVEMENTS IN CABLE TELEPHONY.

Info

Publication number
ES115988A1
ES115988A1 ES0115988A ES115988A ES115988A1 ES 115988 A1 ES115988 A1 ES 115988A1 ES 0115988 A ES0115988 A ES 0115988A ES 115988 A ES115988 A ES 115988A ES 115988 A1 ES115988 A1 ES 115988A1
Authority
ES
Spain
Prior art keywords
cable telephony
telephony
cable
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
ES0115988A
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.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products Inc
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 Electrical Research Products Inc filed Critical Electrical Research Products Inc
Priority to ES0115988A priority Critical patent/ES115988A1/en
Publication of ES115988A1 publication Critical patent/ES115988A1/en
Expired legal-status Critical Current

Links

ES0115988A 1929-11-27 1929-11-27 IMPROVEMENTS IN CABLE TELEPHONY. Expired ES115988A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES0115988A ES115988A1 (en) 1929-11-27 1929-11-27 IMPROVEMENTS IN CABLE TELEPHONY.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES0115988A ES115988A1 (en) 1929-11-27 1929-11-27 IMPROVEMENTS IN CABLE TELEPHONY.

Publications (1)

Publication Number Publication Date
ES115988A1 true ES115988A1 (en) 1930-01-01

Family

ID=37820868

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0115988A Expired ES115988A1 (en) 1929-11-27 1929-11-27 IMPROVEMENTS IN CABLE TELEPHONY.

Country Status (1)

Country Link
ES (1) ES115988A1 (en)

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