NL7205169A - - Google Patents
Info
- Publication number
- NL7205169A NL7205169A NL7205169A NL7205169A NL7205169A NL 7205169 A NL7205169 A NL 7205169A NL 7205169 A NL7205169 A NL 7205169A NL 7205169 A NL7205169 A NL 7205169A NL 7205169 A NL7205169 A NL 7205169A
- Authority
- NL
- Netherlands
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L5/00—Drawing boards
- B43L5/02—Drawing boards having means for clamping sheets of paper thereto
- B43L5/027—Drawing boards having means for clamping sheets of paper thereto with suction devices
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- 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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7205169A NL7205169A (en) | 1972-04-18 | 1972-04-18 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7205169A NL7205169A (en) | 1972-04-18 | 1972-04-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7205169A true NL7205169A (en) | 1973-10-22 |
Family
ID=19815864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7205169A NL7205169A (en) | 1972-04-18 | 1972-04-18 |
Country Status (1)
Country | Link |
---|---|
NL (1) | NL7205169A (en) |
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1972
- 1972-04-18 NL NL7205169A patent/NL7205169A/xx unknown