FR843178A - Perfectionnements aux appareils de projection - Google Patents

Perfectionnements aux appareils de projection

Info

Publication number
FR843178A
FR843178A FR843178DA FR843178A FR 843178 A FR843178 A FR 843178A FR 843178D A FR843178D A FR 843178DA FR 843178 A FR843178 A FR 843178A
Authority
FR
France
Prior art keywords
projection devices
projection
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)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR843178A publication Critical patent/FR843178A/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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR843178D 1937-09-09 1938-09-08 Perfectionnements aux appareils de projection Expired FR843178A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB843178X 1937-09-09

Publications (1)

Publication Number Publication Date
FR843178A true FR843178A (fr) 1939-06-27

Family

ID=10571297

Family Applications (1)

Application Number Title Priority Date Filing Date
FR843178D Expired FR843178A (fr) 1937-09-09 1938-09-08 Perfectionnements aux appareils de projection

Country Status (1)

Country Link
FR (1) FR843178A (fr)

Similar Documents

Publication Publication Date Title
FR828977A (fr) Perfectionnements aux appareils de projection
FR836335A (fr) Perfectionnements aux appareils frigorifiques
FR765048A (fr) Perfectionnements aux appareils filtrants
FR835906A (fr) Perfectionnements aux appareils à dessiner
FR837010A (fr) Perfectionnements aux appareils de projection cinématographiques
FR823963A (fr) Perfectionnements aux autocolimateurs
FR844988A (fr) Perfectionnements aux pose-mètres
FR828433A (fr) Perfectionnements aux appareils filtrants
FR843178A (fr) Perfectionnements aux appareils de projection
FR851543A (fr) Perfectionnements aux appareils de séchage
FR853298A (fr) Perfectionnements aux appareils de projection
FR820614A (fr) Perfectionnements aux appareils gyroscopiques
FR828381A (fr) Perfectionnements apportés aux appareils de pesage
FR834553A (fr) Perfectionnements aux appareils de projection cinématographiques
FR833048A (fr) Perfectionnements aux appareils à calculer
FR845986A (fr) Perfectionnements aux appareils de télévision
FR839371A (fr) Perfectionnements aux appareils cinématographiques
FR841483A (fr) Perfectionnements aux appareils cinématographiques
FR828858A (fr) Perfectionnements aux appareils de projection
FR821609A (fr) Perfectionnements aux appareils de projection
FR48291E (fr) Perfectionnements aux appareils épiscopiques
FR843226A (fr) Perfectionnements apportés aux appareils sanitaires
FR846142A (fr) Perfectionnements apportés aux appareils sanitaires
FR834786A (fr) Perfectionnements aux appareils de publicité
FR847638A (fr) Perfectionnements aux appareils gyroscopiques