BE389808A - - Google Patents
Info
- Publication number
- BE389808A BE389808A BE389808DA BE389808A BE 389808 A BE389808 A BE 389808A BE 389808D A BE389808D A BE 389808DA BE 389808 A BE389808 A BE 389808A
- Authority
- BE
- Belgium
- Prior art keywords
- sound
- film
- films
- improvement
- reproduction
- Prior art date
Links
- 230000000875 corresponding Effects 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims 1
- 230000033458 reproduction Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- BUGBHKTXTAQXES-UHFFFAOYSA-N selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 2
- 229910052711 selenium Inorganic materials 0.000 description 2
- 239000011669 selenium Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 101710031899 moon Proteins 0.000 description 1
- 230000001264 neutralization Effects 0.000 description 1
- 230000003287 optical Effects 0.000 description 1
- 229910052904 quartz Inorganic materials 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000002441 reversible Effects 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Projection Apparatus (AREA)
- Details Of Television Scanning (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE389808A true BE389808A (es) |
Family
ID=57857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE389808D BE389808A (es) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE389808A (es) |
-
0
- BE BE389808D patent/BE389808A/fr unknown
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