BE738652A - - Google Patents

Info

Publication number
BE738652A
BE738652A BE738652DA BE738652A BE 738652 A BE738652 A BE 738652A BE 738652D A BE738652D A BE 738652DA BE 738652 A BE738652 A BE 738652A
Authority
BE
Belgium
Application number
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 BE738652A publication Critical patent/BE738652A/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
    • G03B23/00—Devices for changing pictures in viewing apparatus or projectors
    • G03B23/18—Devices for changing pictures in viewing apparatus or projectors with fade-in and fade-out effects
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
BE738652D 1969-04-22 1969-09-10 BE738652A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6912556A FR2041898A5 (enrdf_load_stackoverflow) 1969-04-22 1969-04-22

Publications (1)

Publication Number Publication Date
BE738652A true BE738652A (enrdf_load_stackoverflow) 1970-02-16

Family

ID=9032820

Family Applications (1)

Application Number Title Priority Date Filing Date
BE738652D BE738652A (enrdf_load_stackoverflow) 1969-04-22 1969-09-10

Country Status (5)

Country Link
BE (1) BE738652A (enrdf_load_stackoverflow)
CH (1) CH498416A (enrdf_load_stackoverflow)
DE (1) DE1954945A1 (enrdf_load_stackoverflow)
FR (1) FR2041898A5 (enrdf_load_stackoverflow)
NL (1) NL6916364A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
CH498416A (fr) 1970-10-31
DE1954945A1 (de) 1970-11-26
NL6916364A (enrdf_load_stackoverflow) 1970-10-26
FR2041898A5 (enrdf_load_stackoverflow) 1971-02-05

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