DE235639C - - Google Patents

Info

Publication number
DE235639C
DE235639C DENDAT235639D DE235639DA DE235639C DE 235639 C DE235639 C DE 235639C DE NDAT235639 D DENDAT235639 D DE NDAT235639D DE 235639D A DE235639D A DE 235639DA DE 235639 C DE235639 C DE 235639C
Authority
DE
Germany
Prior art keywords
format
lever system
image
portrait
lever
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.)
Active
Application number
DENDAT235639D
Other languages
German (de)
English (en)
Publication of DE235639C publication Critical patent/DE235639C/de
Active legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/54Accessories
    • G03B21/64Means for mounting individual pictures to be projected, e.g. frame for transparency

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
DENDAT235639D Active DE235639C (enrdf_load_html_response)

Publications (1)

Publication Number Publication Date
DE235639C true DE235639C (enrdf_load_html_response)

Family

ID=495393

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT235639D Active DE235639C (enrdf_load_html_response)

Country Status (1)

Country Link
DE (1) DE235639C (enrdf_load_html_response)

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