FR852767A - Improvements to electro-magnetic sound recording devices - Google Patents

Improvements to electro-magnetic sound recording devices

Info

Publication number
FR852767A
FR852767A FR852767DA FR852767A FR 852767 A FR852767 A FR 852767A FR 852767D A FR852767D A FR 852767DA FR 852767 A FR852767 A FR 852767A
Authority
FR
France
Prior art keywords
electro
recording devices
sound recording
magnetic sound
magnetic
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)
Inventor
Giovanni Liguori
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 FR852767A publication Critical patent/FR852767A/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
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/22—Stopping means
FR852767D 1938-04-07 1939-04-06 Improvements to electro-magnetic sound recording devices Expired FR852767A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT852767X 1938-04-07

Publications (1)

Publication Number Publication Date
FR852767A true FR852767A (en) 1940-03-02

Family

ID=11327025

Family Applications (1)

Application Number Title Priority Date Filing Date
FR852767D Expired FR852767A (en) 1938-04-07 1939-04-06 Improvements to electro-magnetic sound recording devices

Country Status (1)

Country Link
FR (1) FR852767A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2610808A (en) * 1946-11-22 1952-09-16 J P Sceburg Corp Magnetic recording apparatus
US2622812A (en) * 1947-03-22 1952-12-23 Gen Mills Inc Reel stop and drive
US2643071A (en) * 1947-03-07 1953-06-23 Brush Dev Co Magnetic transducing apparatus
US2707729A (en) * 1948-11-06 1955-05-03 Francis P Keiper Recorder controls

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2610808A (en) * 1946-11-22 1952-09-16 J P Sceburg Corp Magnetic recording apparatus
US2643071A (en) * 1947-03-07 1953-06-23 Brush Dev Co Magnetic transducing apparatus
US2622812A (en) * 1947-03-22 1952-12-23 Gen Mills Inc Reel stop and drive
US2707729A (en) * 1948-11-06 1955-05-03 Francis P Keiper Recorder controls

Similar Documents

Publication Publication Date Title
FR852767A (en) Improvements to electro-magnetic sound recording devices
FR860843A (en) Improvements to devices for recording sounds
FR858513A (en) Improvements to mechanical exploration devices for sound recordings
FR945905A (en) Improvements to sound recording
FR853667A (en) Improvements to sound recording devices
FR853247A (en) Improvements to audio-frequency amplifiers
FR866331A (en) Improvements to sound recording devices
FR839556A (en) Improvements to electrotherapy devices
FR913743A (en) Improvements to flexible coupling discs
FR746686A (en) Improvements to devices intended for recording sound
FR844211A (en) Improvements to sound reproducing devices such as loudspeakers
FR821739A (en) Improvements to sound recording devices
FR853847A (en) Improvements to recording devices
FR814549A (en) Improvements to photographic sound recording devices
FR858639A (en) Improvements to styles for recording sounds
FR1043878A (en) Improvements to sound recording devices
FR881277A (en) Apparatus for photoelectric sound recording and reproduction
FR858741A (en) Improvements to sound amplifying devices
FR857679A (en) Improvements to electrical alarm devices
FR709890A (en) Improvements to devices intended for recording sound
FR858268A (en) Improvements to electro-acoustic transmitters and similar devices
FR850365A (en) Improvements to sound recording
FR854121A (en) Improvements to electromechanical vibrating devices
CA374776A (en) Sound reproducing device
BE435751A (en) Improvements to mechanical exploration devices for sound recordings