ES85296A3 - Improvements in telephone systems. - Google Patents

Improvements in telephone systems.

Info

Publication number
ES85296A3
ES85296A3 ES85296A ES85296A ES85296A3 ES 85296 A3 ES85296 A3 ES 85296A3 ES 85296 A ES85296 A ES 85296A ES 85296 A ES85296 A ES 85296A ES 85296 A3 ES85296 A3 ES 85296A3
Authority
ES
Spain
Prior art keywords
telephone systems
telephone
systems
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
ES85296A
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.)
Kellogg Switchboard and Supply Co
Original Assignee
Kellogg Switchboard and Supply 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 Kellogg Switchboard and Supply Co filed Critical Kellogg Switchboard and Supply Co
Priority to ES85296A priority Critical patent/ES85296A3/en
Publication of ES85296A3 publication Critical patent/ES85296A3/en
Expired legal-status Critical Current

Links

ES85296A 1923-04-23 1923-04-23 Improvements in telephone systems. Expired ES85296A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES85296A ES85296A3 (en) 1923-04-23 1923-04-23 Improvements in telephone systems.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES85296A ES85296A3 (en) 1923-04-23 1923-04-23 Improvements in telephone systems.

Publications (1)

Publication Number Publication Date
ES85296A3 true ES85296A3 (en) 1923-07-01

Family

ID=69407428

Family Applications (1)

Application Number Title Priority Date Filing Date
ES85296A Expired ES85296A3 (en) 1923-04-23 1923-04-23 Improvements in telephone systems.

Country Status (1)

Country Link
ES (1) ES85296A3 (en)

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