DE312513C - - Google Patents
Info
- Publication number
- DE312513C DE312513C DENDAT312513D DE312513DA DE312513C DE 312513 C DE312513 C DE 312513C DE NDAT312513 D DENDAT312513 D DE NDAT312513D DE 312513D A DE312513D A DE 312513DA DE 312513 C DE312513 C DE 312513C
- Authority
- DE
- Germany
- Prior art keywords
- grid
- frame
- glass
- glass plates
- plate
- 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
- 239000011521 glass Substances 0.000 claims description 30
- 239000002184 metal Substances 0.000 description 8
- 239000006059 cover glass Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 244000283070 Abies balsamea Species 0.000 description 1
- 235000007173 Abies balsamea Nutrition 0.000 description 1
- 239000004858 Canada balsam Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F5/00—Screening processes; Screens therefor
- G03F5/02—Screening processes; Screens therefor by projection methods
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Viewfinders (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE312513T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE312513C true DE312513C (enrdf_load_stackoverflow) |
Family
ID=6135437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT312513D Active DE312513C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE312513C (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2533650A (en) * | 1944-08-23 | 1950-12-12 | Powers Photo Engraving Company | Process of making half-tone negatives |
-
0
- DE DENDAT312513D patent/DE312513C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2533650A (en) * | 1944-08-23 | 1950-12-12 | Powers Photo Engraving Company | Process of making half-tone negatives |
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