FR672600A - Perfectionnements auv appareils de projection pour appareils enregistreurs, oscillographes, etc. - Google Patents

Perfectionnements auv appareils de projection pour appareils enregistreurs, oscillographes, etc.

Info

Publication number
FR672600A
FR672600A FR672600DA FR672600A FR 672600 A FR672600 A FR 672600A FR 672600D A FR672600D A FR 672600DA FR 672600 A FR672600 A FR 672600A
Authority
FR
France
Prior art keywords
devices
oscillographs
projection
recording
recording devices
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
Andre Blondel
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 FR672600A publication Critical patent/FR672600A/fr
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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/24—Details of cameras or camera bodies; Accessories therefor with means for separately producing marks on the film, e.g. title, time of exposure

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR672600D 1929-04-05 1929-04-05 Perfectionnements auv appareils de projection pour appareils enregistreurs, oscillographes, etc. Expired FR672600A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR672600T 1929-04-05

Publications (1)

Publication Number Publication Date
FR672600A true FR672600A (fr) 1929-12-30

Family

ID=9017577

Family Applications (1)

Application Number Title Priority Date Filing Date
FR672600D Expired FR672600A (fr) 1929-04-05 1929-04-05 Perfectionnements auv appareils de projection pour appareils enregistreurs, oscillographes, etc.

Country Status (1)

Country Link
FR (1) FR672600A (fr)

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