DE245915C - - Google Patents
Info
- Publication number
- DE245915C DE245915C DENDAT245915D DE245915DA DE245915C DE 245915 C DE245915 C DE 245915C DE NDAT245915 D DENDAT245915 D DE NDAT245915D DE 245915D A DE245915D A DE 245915DA DE 245915 C DE245915 C DE 245915C
- Authority
- DE
- Germany
- Prior art keywords
- strips
- ceiling
- edge
- clamping strips
- grooved
- 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
- 239000004744 fabric Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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)
- Joining Of Glass To Other Materials (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE245915C true DE245915C (enExample) |
Family
ID=504835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT245915D Active DE245915C (enExample) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE245915C (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2774289A (en) * | 1952-01-09 | 1956-12-18 | Peerless Photo Products Inc | Printing device |
-
0
- DE DENDAT245915D patent/DE245915C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2774289A (en) * | 1952-01-09 | 1956-12-18 | Peerless Photo Products Inc | Printing device |
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