FR706640A - Perfectionnements apportés au mode de correspondance postale par disques phonographiques - Google Patents

Perfectionnements apportés au mode de correspondance postale par disques phonographiques

Info

Publication number
FR706640A
FR706640A FR706640DA FR706640A FR 706640 A FR706640 A FR 706640A FR 706640D A FR706640D A FR 706640DA FR 706640 A FR706640 A FR 706640A
Authority
FR
France
Prior art keywords
correspondence method
phonographic records
postal correspondence
postal
phonographic
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)
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.)
Permadisk S A
Original Assignee
Permadisk S A
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 Permadisk S A filed Critical Permadisk S A
Application granted granted Critical
Publication of FR706640A publication Critical patent/FR706640A/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
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/68—Record carriers
    • G11B3/70—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers
FR706640D 1930-11-27 1930-11-27 Perfectionnements apportés au mode de correspondance postale par disques phonographiques Expired FR706640A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR706640T 1930-11-27

Publications (1)

Publication Number Publication Date
FR706640A true FR706640A (fr) 1931-06-27

Family

ID=9067908

Family Applications (1)

Application Number Title Priority Date Filing Date
FR706640D Expired FR706640A (fr) 1930-11-27 1930-11-27 Perfectionnements apportés au mode de correspondance postale par disques phonographiques

Country Status (1)

Country Link
FR (1) FR706640A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3132866A (en) * 1960-12-01 1964-05-12 Baerle Van Phonograph record

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3132866A (en) * 1960-12-01 1964-05-12 Baerle Van Phonograph record

Similar Documents

Publication Publication Date Title
FR706640A (fr) Perfectionnements apportés au mode de correspondance postale par disques phonographiques
FR703177A (fr) Perfectionnement aux phonographes
FR715435A (fr) Perfectionnements aux manivelles de phonographes
FR705593A (fr) Disque de phonographe
FR725084A (fr) Disque de phonographe
FR704536A (fr) Dépoussiéreur
FR707864A (fr) Disque phonographique
FR718426A (fr) Perfectionnements aux disques de phonographes
FR691592A (fr) Phonographe
FR700739A (fr) Perfectionnements aux disques phonographiques
ES116510A1 (es) Perfeccionamientos en los aparatos registradores de sonidos.
FR706629A (fr) étau perfectionné
FR690357A (fr) Caisse perfectionnée
DK44484C (da) Læst.
FR603661A (fr) Système d'entraînement par cône
CA278590A (fr) Classeur vertical
FR706128A (fr) Phonogramme
FR661166A (fr) Disques de phonographes
FR694572A (fr) Meubles
FR713937A (fr) Disque de machine parlante
FR687767A (fr) Fausset pratique
CA288362A (fr) Empreinte de sons
ES112072A1 (es) Un perfeccionamiento en las envolventes de discos fonográficos.
CA271077A (fr) Dossier a renvois rapides
FI12760A (fi) Puun läpivärjäysmenetelmä