ES124566A1 - Improvements in sound recording devices. - Google Patents

Improvements in sound recording devices.

Info

Publication number
ES124566A1
ES124566A1 ES124566A ES124566A ES124566A1 ES 124566 A1 ES124566 A1 ES 124566A1 ES 124566 A ES124566 A ES 124566A ES 124566 A ES124566 A ES 124566A ES 124566 A1 ES124566 A1 ES 124566A1
Authority
ES
Spain
Prior art keywords
recording devices
sound recording
sound
devices
recording
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
ES124566A
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.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products Inc
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 Electrical Research Products Inc filed Critical Electrical Research Products Inc
Priority to ES124566A priority Critical patent/ES124566A1/en
Publication of ES124566A1 publication Critical patent/ES124566A1/en
Expired legal-status Critical Current

Links

ES124566A 1931-10-21 1931-10-21 Improvements in sound recording devices. Expired ES124566A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES124566A ES124566A1 (en) 1931-10-21 1931-10-21 Improvements in sound recording devices.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES124566A ES124566A1 (en) 1931-10-21 1931-10-21 Improvements in sound recording devices.

Publications (1)

Publication Number Publication Date
ES124566A1 true ES124566A1 (en) 1931-12-01

Family

ID=65581712

Family Applications (1)

Application Number Title Priority Date Filing Date
ES124566A Expired ES124566A1 (en) 1931-10-21 1931-10-21 Improvements in sound recording devices.

Country Status (1)

Country Link
ES (1) ES124566A1 (en)

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