BE405972A - - Google Patents
Info
- Publication number
- BE405972A BE405972A BE405972DA BE405972A BE 405972 A BE405972 A BE 405972A BE 405972D A BE405972D A BE 405972DA BE 405972 A BE405972 A BE 405972A
- Authority
- BE
- Belgium
- Prior art keywords
- desc
- page number
- clms page
- clms
- attention
- Prior art date
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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Developing Agents For Electrophotography (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
Description
<Desc/Clms Page number 1>
EMI1.1
<Desc/Clms Page number 2>
EMI2.1
**ATTENTION** fin du champ DESC peut contenir debut de CLMS **.
<Desc / Clms Page number 1>
EMI1.1
<Desc / Clms Page number 2>
EMI2.1
** ATTENTION ** end of DESC field can contain start of CLMS **.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE405972A true BE405972A (en) |
Family
ID=71069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE405972D BE405972A (en) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE405972A (en) |
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0
- BE BE405972D patent/BE405972A/fr unknown