CH495565A - Tripod projection screen - Google Patents

Tripod projection screen

Info

Publication number
CH495565A
CH495565A CH1062369A CH1062369A CH495565A CH 495565 A CH495565 A CH 495565A CH 1062369 A CH1062369 A CH 1062369A CH 1062369 A CH1062369 A CH 1062369A CH 495565 A CH495565 A CH 495565A
Authority
CH
Switzerland
Prior art keywords
projection screen
tripod
tripod projection
screen
projection
Prior art date
Application number
CH1062369A
Other languages
German (de)
Inventor
Mias Norbert
Original Assignee
Christophery Gmbh
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 Christophery Gmbh filed Critical Christophery Gmbh
Priority to DE19691941171 priority Critical patent/DE1941171A1/en
Priority to DE6932287U priority patent/DE6932287U/en
Publication of CH495565A publication Critical patent/CH495565A/en

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
    • G03B21/58—Projection screens collapsible, e.g. foldable; of variable area

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
CH1062369A 1968-08-21 1969-07-11 Tripod projection screen CH495565A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19691941171 DE1941171A1 (en) 1969-07-11 1969-08-13 Tripod screen for outpatient purposes
DE6932287U DE6932287U (en) 1969-07-11 1969-08-14 TRIPOD SCREEN FOR AMBULANCE PURPOSES.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1797141 1968-08-21

Publications (1)

Publication Number Publication Date
CH495565A true CH495565A (en) 1970-08-31

Family

ID=5708530

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1062369A CH495565A (en) 1968-08-21 1969-07-11 Tripod projection screen

Country Status (4)

Country Link
BE (1) BE736885A (en)
CH (1) CH495565A (en)
FR (1) FR2016030A1 (en)
NL (1) NL6912699A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0522514A1 (en) * 1991-07-08 1993-01-13 MECHANISCHE WEBEREI GMBH & CO. Housing for retractable projection screen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0522514A1 (en) * 1991-07-08 1993-01-13 MECHANISCHE WEBEREI GMBH & CO. Housing for retractable projection screen

Also Published As

Publication number Publication date
NL6912699A (en) 1970-02-24
BE736885A (en) 1969-12-31
FR2016030A1 (en) 1970-04-30

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Legal Events

Date Code Title Description
PL Patent ceased