DE254201C - - Google Patents
Info
- Publication number
- DE254201C DE254201C DENDAT254201D DE254201DA DE254201C DE 254201 C DE254201 C DE 254201C DE NDAT254201 D DENDAT254201 D DE NDAT254201D DE 254201D A DE254201D A DE 254201DA DE 254201 C DE254201 C DE 254201C
- Authority
- DE
- Germany
- Prior art keywords
- flap
- slot width
- slot
- column
- sheet
- 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
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
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/08—Shutters
- G03B9/28—Roller blind or flexible plate
- G03B9/32—Double blind
- G03B9/34—Double blind with adjustable slot; with mechanism controlling relative movement of blinds to form slot
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE254201C true DE254201C (ca) |
Family
ID=512412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT254201D Active DE254201C (ca) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE254201C (ca) |
-
0
- DE DENDAT254201D patent/DE254201C/de active Active
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