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ES87145A1 - Perfeccionamiento en telefonía automática. - Google Patents

Perfeccionamiento en telefonía automática.

Info

Publication number
ES87145A1
ES87145A1 ES87145A ES87145A ES87145A1 ES 87145 A1 ES87145 A1 ES 87145A1 ES 87145 A ES87145 A ES 87145A ES 87145 A ES87145 A ES 87145A ES 87145 A1 ES87145 A1 ES 87145A1
Authority
ES
Spain
Prior art keywords
improvement
automatic telephony
telephony
automatic
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
ES87145A
Other languages
English (en)
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.)
Relay Automatic Telephone Company Ltd
Original Assignee
Relay Automatic Telephone Company Ltd
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 Relay Automatic Telephone Company Ltd filed Critical Relay Automatic Telephone Company Ltd
Priority to ES87145A priority Critical patent/ES87145A1/es
Publication of ES87145A1 publication Critical patent/ES87145A1/es
Expired legal-status Critical Current

Links

ES87145A 1923-10-25 1923-10-25 Perfeccionamiento en telefonía automática. Expired ES87145A1 (es)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES87145A ES87145A1 (es) 1923-10-25 1923-10-25 Perfeccionamiento en telefonía automática.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES87145A ES87145A1 (es) 1923-10-25 1923-10-25 Perfeccionamiento en telefonía automática.

Publications (1)

Publication Number Publication Date
ES87145A1 true ES87145A1 (es) 1923-12-01

Family

ID=64251921

Family Applications (1)

Application Number Title Priority Date Filing Date
ES87145A Expired ES87145A1 (es) 1923-10-25 1923-10-25 Perfeccionamiento en telefonía automática.

Country Status (1)

Country Link
ES (1) ES87145A1 (es)

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