DD121196A5 - - Google Patents

Info

Publication number
DD121196A5
DD121196A5 DD187572A DD18757275A DD121196A5 DD 121196 A5 DD121196 A5 DD 121196A5 DD 187572 A DD187572 A DD 187572A DD 18757275 A DD18757275 A DD 18757275A DD 121196 A5 DD121196 A5 DD 121196A5
Authority
DD
German Democratic Republic
Application number
DD187572A
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 filed Critical
Publication of DD121196A5 publication Critical patent/DD121196A5/xx

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)
  • Overhead Projectors And Projection Screens (AREA)
DD187572A 1975-01-17 1975-07-30 DD121196A5 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE7501295 1975-01-17

Publications (1)

Publication Number Publication Date
DD121196A5 true DD121196A5 (enrdf_load_stackoverflow) 1976-07-12

Family

ID=6649712

Family Applications (1)

Application Number Title Priority Date Filing Date
DD187572A DD121196A5 (enrdf_load_stackoverflow) 1975-01-17 1975-07-30

Country Status (11)

Country Link
AT (1) AT335537B (enrdf_load_stackoverflow)
BE (1) BE832380A (enrdf_load_stackoverflow)
CH (1) CH595649A5 (enrdf_load_stackoverflow)
DD (1) DD121196A5 (enrdf_load_stackoverflow)
DK (1) DK350075A (enrdf_load_stackoverflow)
FR (1) FR2298122A1 (enrdf_load_stackoverflow)
GB (1) GB1467569A (enrdf_load_stackoverflow)
IT (1) IT7560414U1 (enrdf_load_stackoverflow)
LU (1) LU73134A1 (enrdf_load_stackoverflow)
NL (1) NL7600054A (enrdf_load_stackoverflow)
SE (1) SE7508721L (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7707290U1 (de) * 1977-03-09 1977-06-30 Mechanische Weberei Gmbh, 4792 Bad Lippspringe Lichtbildprojektionswand mit lautsprechern

Also Published As

Publication number Publication date
NL7600054A (nl) 1976-07-20
BE832380A (fr) 1975-12-01
FR2298122A1 (fr) 1976-08-13
ATA579975A (de) 1976-07-15
SE7508721L (sv) 1976-07-19
GB1467569A (en) 1977-03-16
IT7560414U1 (it) 1977-02-14
DK350075A (da) 1976-07-18
LU73134A1 (enrdf_load_stackoverflow) 1976-03-02
FR2298122B1 (enrdf_load_stackoverflow) 1979-05-11
AT335537B (de) 1977-03-10
CH595649A5 (enrdf_load_stackoverflow) 1978-02-15

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