ES1225A1 - An electro-acoustic device called "Phonophor". - Google Patents

An electro-acoustic device called "Phonophor".

Info

Publication number
ES1225A1
ES1225A1 ES1225A ES1225A ES1225A1 ES 1225 A1 ES1225 A1 ES 1225A1 ES 1225 A ES1225 A ES 1225A ES 1225 A ES1225 A ES 1225A ES 1225 A1 ES1225 A1 ES 1225A1
Authority
ES
Spain
Prior art keywords
phonophor
electro
acoustic device
device called
called
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
ES1225A
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.)
Wreden Robert Frederick
Original Assignee
Wreden Robert Frederick
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 Wreden Robert Frederick filed Critical Wreden Robert Frederick
Priority to ES1225A priority Critical patent/ES1225A1/en
Publication of ES1225A1 publication Critical patent/ES1225A1/en
Expired legal-status Critical Current

Links

ES1225A 1880-11-04 1880-11-04 An electro-acoustic device called "Phonophor". Expired ES1225A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES1225A ES1225A1 (en) 1880-11-04 1880-11-04 An electro-acoustic device called "Phonophor".

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES1225A ES1225A1 (en) 1880-11-04 1880-11-04 An electro-acoustic device called "Phonophor".

Publications (1)

Publication Number Publication Date
ES1225A1 true ES1225A1 (en) 1881-08-02

Family

ID=64158304

Family Applications (1)

Application Number Title Priority Date Filing Date
ES1225A Expired ES1225A1 (en) 1880-11-04 1880-11-04 An electro-acoustic device called "Phonophor".

Country Status (1)

Country Link
ES (1) ES1225A1 (en)

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