FR522983A - Perfectionnements apportés aux projections cinématographiques - Google Patents

Perfectionnements apportés aux projections cinématographiques

Info

Publication number
FR522983A
FR522983A FR522983A FR522983DA FR522983A FR 522983 A FR522983 A FR 522983A FR 522983 A FR522983 A FR 522983A FR 522983D A FR522983D A FR 522983DA FR 522983 A FR522983 A FR 522983A
Authority
FR
France
Prior art keywords
improvements made
film screenings
screenings
film
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
FR522983A
Other languages
English (en)
Inventor
Etienne-Lucien Vives
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR522983A publication Critical patent/FR522983A/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
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
    • G03B21/606—Projection screens characterised by the nature of the surface for relief projection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR522983A 1919-05-30 1919-05-30 Perfectionnements apportés aux projections cinématographiques Expired FR522983A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR522983T 1919-05-30

Publications (1)

Publication Number Publication Date
FR522983A true FR522983A (fr) 1921-08-09

Family

ID=8918286

Family Applications (1)

Application Number Title Priority Date Filing Date
FR522983A Expired FR522983A (fr) 1919-05-30 1919-05-30 Perfectionnements apportés aux projections cinématographiques

Country Status (1)

Country Link
FR (1) FR522983A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6644452B2 (en) * 2001-04-25 2003-11-11 Maclean-Fogg Company Wheel hub with clutch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6644452B2 (en) * 2001-04-25 2003-11-11 Maclean-Fogg Company Wheel hub with clutch

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