NL164396C - Overhead-projector met anti-verblindingsscherm. - Google Patents
Overhead-projector met anti-verblindingsscherm.Info
- Publication number
- NL164396C NL164396C NL6815702.A NL164396DA NL164396C NL 164396 C NL164396 C NL 164396C NL 164396D A NL164396D A NL 164396DA NL 164396 C NL164396 C NL 164396C
- Authority
- NL
- Netherlands
- Prior art keywords
- overhead projector
- glare display
- glare
- display
- projector
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
- E04B2/14—Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element
- E04B2/22—Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element using elements having a general shape differing from that of a parallelepiped
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1029835T | 1950-12-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL164396C true NL164396C (nl) |
Family
ID=9582087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6815702.A NL164396C (nl) | 1950-12-18 | Overhead-projector met anti-verblindingsscherm. |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1029835A (nl) |
| NL (1) | NL164396C (nl) |
-
0
- NL NL6815702.A patent/NL164396C/nl active
-
1950
- 1950-12-18 FR FR1029835D patent/FR1029835A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1029835A (fr) | 1953-06-08 |
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