FR449578A - écran perfectionné pour appareils de projection - Google Patents

écran perfectionné pour appareils de projection

Info

Publication number
FR449578A
FR449578A FR449578A FR449578DA FR449578A FR 449578 A FR449578 A FR 449578A FR 449578 A FR449578 A FR 449578A FR 449578D A FR449578D A FR 449578DA FR 449578 A FR449578 A FR 449578A
Authority
FR
France
Prior art keywords
projection devices
advanced screen
advanced
screen
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
FR449578A
Other languages
English (en)
Inventor
Lucien Crespin
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 FR449578A publication Critical patent/FR449578A/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
    • G03B21/602—Lenticular screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F1/00—Platen presses, i.e. presses in which printing is effected by at least one essentially-flat pressure-applying member co-operating with a flat type-bed
    • B41F1/26—Details
    • B41F1/40—Inking units

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
FR449578A 1912-03-09 1912-10-18 écran perfectionné pour appareils de projection Expired FR449578A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE449578X 1934-05-12

Publications (1)

Publication Number Publication Date
FR449578A true FR449578A (fr) 1913-03-03

Family

ID=6538291

Family Applications (1)

Application Number Title Priority Date Filing Date
FR449578A Expired FR449578A (fr) 1912-03-09 1912-10-18 écran perfectionné pour appareils de projection

Country Status (3)

Country Link
US (1) US2042769A (fr)
FR (1) FR449578A (fr)
GB (1) GB449578A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2522218A (en) * 1945-11-17 1950-09-12 Markem Machine Co Ink unit for marking machines
US2543219A (en) * 1948-04-13 1951-02-27 Art Metal Construction Co Cutting attachment for printing presses
NL90382C (fr) * 1954-04-01
CN114148076B (zh) * 2021-10-09 2022-12-09 曾福英 一种财经文档类文件打印机

Also Published As

Publication number Publication date
US2042769A (en) 1936-06-02
GB449578A (en) 1936-06-30

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