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ES81989A1 - A relay system for telephones. - Google Patents

A relay system for telephones.

Info

Publication number
ES81989A1
ES81989A1 ES81989A ES81989A ES81989A1 ES 81989 A1 ES81989 A1 ES 81989A1 ES 81989 A ES81989 A ES 81989A ES 81989 A ES81989 A ES 81989A ES 81989 A1 ES81989 A1 ES 81989A1
Authority
ES
Spain
Prior art keywords
telephones
relay system
relay
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
ES81989A
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.)
TELEGRAPHIE GmbH
Original Assignee
TELEGRAPHIE GmbH
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 TELEGRAPHIE GmbH filed Critical TELEGRAPHIE GmbH
Priority to ES81989A priority Critical patent/ES81989A1/en
Publication of ES81989A1 publication Critical patent/ES81989A1/en
Expired legal-status Critical Current

Links

ES81989A 1922-06-13 1922-06-13 A relay system for telephones. Expired ES81989A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES81989A ES81989A1 (en) 1922-06-13 1922-06-13 A relay system for telephones.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES81989A ES81989A1 (en) 1922-06-13 1922-06-13 A relay system for telephones.

Publications (1)

Publication Number Publication Date
ES81989A1 true ES81989A1 (en) 1922-12-01

Family

ID=64259741

Family Applications (1)

Application Number Title Priority Date Filing Date
ES81989A Expired ES81989A1 (en) 1922-06-13 1922-06-13 A relay system for telephones.

Country Status (1)

Country Link
ES (1) ES81989A1 (en)

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