ES125172A1 - Improvements in photographic sound records. - Google Patents

Improvements in photographic sound records.

Info

Publication number
ES125172A1
ES125172A1 ES125172A ES125172A ES125172A1 ES 125172 A1 ES125172 A1 ES 125172A1 ES 125172 A ES125172 A ES 125172A ES 125172 A ES125172 A ES 125172A ES 125172 A1 ES125172 A1 ES 125172A1
Authority
ES
Spain
Prior art keywords
sound records
photographic sound
photographic
records
sound
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
ES125172A
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 ES125172A priority Critical patent/ES125172A1/en
Publication of ES125172A1 publication Critical patent/ES125172A1/en
Expired legal-status Critical Current

Links

ES125172A 1931-12-16 1931-12-16 Improvements in photographic sound records. Expired ES125172A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES125172A ES125172A1 (en) 1931-12-16 1931-12-16 Improvements in photographic sound records.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES125172A ES125172A1 (en) 1931-12-16 1931-12-16 Improvements in photographic sound records.

Publications (1)

Publication Number Publication Date
ES125172A1 true ES125172A1 (en) 1932-02-01

Family

ID=65582139

Family Applications (1)

Application Number Title Priority Date Filing Date
ES125172A Expired ES125172A1 (en) 1931-12-16 1931-12-16 Improvements in photographic sound records.

Country Status (1)

Country Link
ES (1) ES125172A1 (en)

Similar Documents

Publication Publication Date Title
ES125172A1 (en) Improvements in photographic sound records.
ES122099A1 (en) Improvements in talking films.
ES124976A1 (en) Improvements in sound reproduction devices.
ES124566A1 (en) Improvements in sound recording devices.
ES122981A1 (en) Improvements in acoustic devices.
ES125964A1 (en) Improvement in sound recording devices.
ES123221A1 (en) Improvements in cinematographic devices.
ES121965A1 (en) Improvements in cinematographic equipment especially in sound cinematography.
FR713378A (en) Sophisticated photographic reproduction
ES132120A1 (en) Improvements in sound devices.
FR40775E (en) Sound film
FR41031E (en) Sound film
FR690463A (en) Phonographic film
ES124110A1 (en) Improvements in the methods for the photographic recording of sounds.
ES122354A1 (en) Improvements in the speakers.
ES123368A1 (en) Improvements in the speakers.
FR657577A (en) Film phonograph records
FR747401A (en) Sound cinematographic film
ES129329A1 (en) Improvements in acoustic devices.
ES132453A1 (en) Improvements in electrodynamic phonographic players.
ES123179A1 (en) Improvements in sound film projection apparatus.
ES128252A1 (en) Improvements in portable sound cinematographic devices.
FR693249A (en) Talking Cinematograph
ES123546A1 (en) Improvements introduced in the speakers.
FR727370A (en) Improvement in sound cinematography