FR669622A - Improvements to image and sound reproduction devices - Google Patents

Improvements to image and sound reproduction devices

Info

Publication number
FR669622A
FR669622A FR669622DA FR669622A FR 669622 A FR669622 A FR 669622A FR 669622D A FR669622D A FR 669622DA FR 669622 A FR669622 A FR 669622A
Authority
FR
France
Prior art keywords
image
sound reproduction
reproduction devices
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.)
Tonbild Syndikat A G
Original Assignee
Tonbild Syndikat A G
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 Tonbild Syndikat A G filed Critical Tonbild Syndikat A G
Application granted granted Critical
Publication of FR669622A publication Critical patent/FR669622A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B31/00—Associated working of cameras or projectors with sound-recording or sound-reproducing means
    • G03B31/02—Associated working of cameras or projectors with sound-recording or sound-reproducing means in which sound track is on a moving-picture film

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR669622D 1929-01-17 1929-02-14 Improvements to image and sound reproduction devices Expired FR669622A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE669622X 1929-01-17

Publications (1)

Publication Number Publication Date
FR669622A true FR669622A (en) 1929-11-19

Family

ID=6590222

Family Applications (1)

Application Number Title Priority Date Filing Date
FR669622D Expired FR669622A (en) 1929-01-17 1929-02-14 Improvements to image and sound reproduction devices

Country Status (1)

Country Link
FR (1) FR669622A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE755152C (en) * 1936-05-21 1953-03-02 Klangfilm G M B H Sound film device with tension roller under spring force

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE755152C (en) * 1936-05-21 1953-03-02 Klangfilm G M B H Sound film device with tension roller under spring force

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