DE83219C - - Google Patents
Info
- Publication number
- DE83219C DE83219C DENDAT83219D DE83219DA DE83219C DE 83219 C DE83219 C DE 83219C DE NDAT83219 D DENDAT83219 D DE NDAT83219D DE 83219D A DE83219D A DE 83219DA DE 83219 C DE83219 C DE 83219C
- Authority
- DE
- Germany
- Prior art keywords
- glass
- glass pane
- pane
- frame
- cover
- 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
- G03B27/00—Photographic printing apparatus
- G03B27/02—Exposure apparatus for contact printing
- G03B27/14—Details
- G03B27/18—Maintaining or producing contact pressure between original and light-sensitive material
- G03B27/20—Maintaining or producing contact pressure between original and light-sensitive material by using a vacuum or fluid pressure
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
Publications (1)
Publication Number | Publication Date |
---|---|
DE83219C true DE83219C (enrdf_load_stackoverflow) |
Family
ID=355553
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT83219D Active DE83219C (enrdf_load_stackoverflow) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE83219C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT83219D patent/DE83219C/de active Active
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