ES94412A1 - Improvements in automatic telephone systems. - Google Patents

Improvements in automatic telephone systems.

Info

Publication number
ES94412A1
ES94412A1 ES94412A ES94412A ES94412A1 ES 94412 A1 ES94412 A1 ES 94412A1 ES 94412 A ES94412 A ES 94412A ES 94412 A ES94412 A ES 94412A ES 94412 A1 ES94412 A1 ES 94412A1
Authority
ES
Spain
Prior art keywords
telephone systems
automatic telephone
automatic
systems
telephone
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
ES94412A
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 ES94412A priority Critical patent/ES94412A1/en
Publication of ES94412A1 publication Critical patent/ES94412A1/en
Expired legal-status Critical Current

Links

ES94412A 1925-07-09 1925-07-09 Improvements in automatic telephone systems. Expired ES94412A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES94412A ES94412A1 (en) 1925-07-09 1925-07-09 Improvements in automatic telephone systems.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES94412A ES94412A1 (en) 1925-07-09 1925-07-09 Improvements in automatic telephone systems.

Publications (1)

Publication Number Publication Date
ES94412A1 true ES94412A1 (en) 1925-11-01

Family

ID=64264555

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94412A Expired ES94412A1 (en) 1925-07-09 1925-07-09 Improvements in automatic telephone systems.

Country Status (1)

Country Link
ES (1) ES94412A1 (en)

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