FR510250A - Perfectionnements aux appareils de projections cinématographiques - Google Patents

Perfectionnements aux appareils de projections cinématographiques

Info

Publication number
FR510250A
FR510250A FR510250A FR510250DA FR510250A FR 510250 A FR510250 A FR 510250A FR 510250 A FR510250 A FR 510250A FR 510250D A FR510250D A FR 510250DA FR 510250 A FR510250 A FR 510250A
Authority
FR
France
Prior art keywords
projection devices
cinematographic projection
cinematographic
devices
projection
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
FR510250A
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.)
FOREIGN PATENTS CORP
Original Assignee
FOREIGN PATENTS CORP
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 FOREIGN PATENTS CORP filed Critical FOREIGN PATENTS CORP
Application granted granted Critical
Publication of FR510250A publication Critical patent/FR510250A/fr
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • G03B21/18Fire preventing or extinguishing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR510250A 1918-10-15 1920-01-20 Perfectionnements aux appareils de projections cinématographiques Expired FR510250A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US510250XA 1918-10-15 1918-10-15

Publications (1)

Publication Number Publication Date
FR510250A true FR510250A (fr) 1920-11-29

Family

ID=21968895

Family Applications (1)

Application Number Title Priority Date Filing Date
FR510250A Expired FR510250A (fr) 1918-10-15 1920-01-20 Perfectionnements aux appareils de projections cinématographiques

Country Status (1)

Country Link
FR (1) FR510250A (fr)

Similar Documents

Publication Publication Date Title
FR510250A (fr) Perfectionnements aux appareils de projections cinématographiques
FR493384A (fr) Perfectionnements aux appareils cinématographiques
FR510016A (fr) Perfectionnements aux bobines pour appareils de projections cinématographiques
FR497740A (fr) Perfectionnements aux appareils de prises de vues cinématographiques
FR506547A (fr) Perfectionnements aux disques obturateurs pour appareils de projection cinématographiques
FR484240A (fr) Perfectionnements apportés aux appareils cinématographiques
FR492631A (fr) Perfectionnements aux appareils cinématographiques
FR497951A (fr) Appareils de cinématographie
FR504258A (fr) Perfectionnements aux appareils gyroscopiques
FR516771A (fr) Perfectionnements aux projecteurs électriques
FR482269A (fr) Perfectionnements apportés aux appareils de projection cinématographique
FR493478A (fr) Perfectionnements aux appareils à métalliser
FR530775A (fr) Dispositif de projection cinématographique
FR529446A (fr) Perfectionnements aux appareils de projections cinématographiques
FR517096A (fr) Perfectionnements aux appareils de projection
FR516277A (fr) Perfectionnements aux appareils pour la projection des images animées
FR502058A (fr) Perfectionnements apportés aux appareils de graissage
FR502059A (fr) Perfectionnements apportés aux appareils de graissage
FR494113A (fr) Perfectionnements apportés aux projections photographiques ou cinématographiques
FR510017A (fr) Perfectionnements aux dispositifs de lubrifaction pour appareils de projection cinématographiques
FR490610A (fr) Cinématographe
CH78956A (de) Kinematograph
CH82261A (de) Kinematograph
FR494052A (fr) Perfectionnements aux appareils de séchage
FR495931A (fr) Appareil de projection