FR645623A - Improvements in sound recording and reproduction devices - Google Patents

Improvements in sound recording and reproduction devices

Info

Publication number
FR645623A
FR645623A FR645623DA FR645623A FR 645623 A FR645623 A FR 645623A FR 645623D A FR645623D A FR 645623DA FR 645623 A FR645623 A FR 645623A
Authority
FR
France
Prior art keywords
sound recording
reproduction devices
reproduction
devices
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
Other languages
French (fr)
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.)
FILOGRAPH PARENT Co Ltd
Original Assignee
FILOGRAPH PARENT Co Ltd
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 FILOGRAPH PARENT Co Ltd filed Critical FILOGRAPH PARENT Co Ltd
Application granted granted Critical
Publication of FR645623A publication Critical patent/FR645623A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
    • G11B25/10—Apparatus capable of using record carriers defined in more than one of the sub-groups G11B25/02 - G11B25/08; Adaptor devices therefor
FR645623D 1926-12-13 1927-12-13 Improvements in sound recording and reproduction devices Expired FR645623A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB645623X 1926-12-13

Publications (1)

Publication Number Publication Date
FR645623A true FR645623A (en) 1928-10-29

Family

ID=10489792

Family Applications (1)

Application Number Title Priority Date Filing Date
FR645623D Expired FR645623A (en) 1926-12-13 1927-12-13 Improvements in sound recording and reproduction devices

Country Status (2)

Country Link
BE (1) BE357724A (en)
FR (1) FR645623A (en)

Also Published As

Publication number Publication date
BE357724A (en) 1929-01-21

Similar Documents

Publication Publication Date Title
FR45642E (en) Improvements in sound transmission, recording and reproduction devices
FR645623A (en) Improvements in sound recording and reproduction devices
FR733092A (en) Improvements in sound recording and reproduction devices
FR745924A (en) Improvements in sound recording and reproduction devices
FR594633A (en) Improvements in sound reproducing and recording devices
FR718036A (en) Improvements in devices for recording and reproducing sound
FR633921A (en) Improvements in sound transmission and reproduction
FR673559A (en) Improvement in sound reproduction and recording devices
FR669440A (en) Improvement in sound recording and reproduction devices
FR716085A (en) Improvements in sound recording and reproduction
FR577563A (en) Improvements in sound transmission and reproduction devices
FR647926A (en) Sound reproduction and recording apparatus
FR670930A (en) Improvements in methods and devices for recording and reproducing sound
FR650504A (en) Improvements to sound recording and reproduction systems
FR871062A (en) Improvements in sound recording and reproduction devices
FR654253A (en) Improvements in phonophotographic processes to record and reproduce sound
FR652167A (en) Further training in electrically controlled vibrators such as sound transmission, reproduction and recording devices
FR618037A (en) Improvements to devices transmitting and reproducing sound
FR612015A (en) Improvements in sound recording and reproducing devices
FR685720A (en) Improvements in phonograms and devices for recording and reproducing sounds
FR649368A (en) Improvements in the means of recording and reproducing sounds
FR699415A (en) Improvements in sound recording and reproduction processes
FR684630A (en) Improvements in sound recording and reproduction
AT112399B (en) Sound recording and reproducing apparatus.
FR681733A (en) Device for recording and reproducing sound