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ES7615A1 - Improvements made to mechanical or acoustic telephones. - Google Patents

Improvements made to mechanical or acoustic telephones.

Info

Publication number
ES7615A1
ES7615A1 ES7615A ES7615A ES7615A1 ES 7615 A1 ES7615 A1 ES 7615A1 ES 7615 A ES7615 A ES 7615A ES 7615 A ES7615 A ES 7615A ES 7615 A1 ES7615 A1 ES 7615A1
Authority
ES
Spain
Prior art keywords
mechanical
improvements made
telephones
acoustic
acoustic telephones
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
ES7615A
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.)
Monjo Domingo Miguel
Sunderland John Powelson
Original Assignee
Monjo Domingo Miguel
Sunderland John Powelson
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 Monjo Domingo Miguel, Sunderland John Powelson filed Critical Monjo Domingo Miguel
Priority to ES7615A priority Critical patent/ES7615A1/en
Publication of ES7615A1 publication Critical patent/ES7615A1/en
Expired legal-status Critical Current

Links

ES7615A 1887-11-28 1887-11-28 Improvements made to mechanical or acoustic telephones. Expired ES7615A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES7615A ES7615A1 (en) 1887-11-28 1887-11-28 Improvements made to mechanical or acoustic telephones.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES7615A ES7615A1 (en) 1887-11-28 1887-11-28 Improvements made to mechanical or acoustic telephones.

Publications (1)

Publication Number Publication Date
ES7615A1 true ES7615A1 (en) 1888-03-01

Family

ID=64111464

Family Applications (1)

Application Number Title Priority Date Filing Date
ES7615A Expired ES7615A1 (en) 1887-11-28 1887-11-28 Improvements made to mechanical or acoustic telephones.

Country Status (1)

Country Link
ES (1) ES7615A1 (en)

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