FR709203A - Perfectionnements aux films parlants - Google Patents

Perfectionnements aux films parlants

Info

Publication number
FR709203A
FR709203A FR709203DA FR709203A FR 709203 A FR709203 A FR 709203A FR 709203D A FR709203D A FR 709203DA FR 709203 A FR709203 A FR 709203A
Authority
FR
France
Prior art keywords
improvement
talking
films
talking films
films improvement
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
Other languages
English (en)
Inventor
Maurice Besnard
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 filed Critical
Application granted granted Critical
Publication of FR709203A publication Critical patent/FR709203A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
FR709203D 1930-04-12 1930-04-12 Perfectionnements aux films parlants Expired FR709203A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR709203T 1930-04-12

Publications (1)

Publication Number Publication Date
FR709203A true FR709203A (fr) 1931-08-04

Family

ID=9069326

Family Applications (1)

Application Number Title Priority Date Filing Date
FR709203D Expired FR709203A (fr) 1930-04-12 1930-04-12 Perfectionnements aux films parlants

Country Status (1)

Country Link
FR (1) FR709203A (fr)

Similar Documents

Publication Publication Date Title
FR715100A (fr) Perfectionnements aux haut-parleurs
FR712387A (fr) Perfectionnements aux haut-parleurs
FR703177A (fr) Perfectionnement aux phonographes
FR724835A (fr) Perfectionnements aux boucles
FR709203A (fr) Perfectionnements aux films parlants
FR705658A (fr) Perfectionnements aux haut-parleurs
FR720012A (fr) Microphone à bande
FR696192A (fr) Perfectionnements aux rasoirs
FR713278A (fr) Perfectionnements aux compresseurs
FR691592A (fr) Phonographe
FR706128A (fr) Phonogramme
FR693249A (fr) Cinématographe parlant
FR711443A (fr) Perfectionnements aux machines parlantes
FR681964A (fr) Perfectionnement aux films phonographiques
FR711947A (fr) Film sonore perfectionné
FR690463A (fr) Film phonographique
FR735067A (fr) Perfectionnements aux projecteurs
FR721662A (fr) Perfectionnements aux compresseurs
FR707103A (fr) Perfectionnements aux haut-parleurs
FR700378A (fr) Perfectionnements aux hauts-parleurs
FR721911A (fr) Perfectionnements aux films
FR39598E (fr) Perfectionnements apportés aux films
FR38950E (fr) Perfectionnements apportés aux films
FR692715A (fr) Perfectionnements aux projecteurs
FR39064E (fr) Perfectionnements aux crêmones