BE359403A - - Google Patents
Info
- Publication number
- BE359403A BE359403A BE359403DA BE359403A BE 359403 A BE359403 A BE 359403A BE 359403D A BE359403D A BE 359403DA BE 359403 A BE359403 A BE 359403A
- Authority
- BE
- Belgium
- Prior art keywords
- level
- ring
- faces
- glass
- bubble
- Prior art date
Links
- 239000011521 glass Substances 0.000 claims description 9
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 239000000565 sealant Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910052705 radium Inorganic materials 0.000 description 1
- HCWPIIXVSYCSAN-UHFFFAOYSA-N radium atom Chemical compound [Ra] HCWPIIXVSYCSAN-UHFFFAOYSA-N 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
- G01C9/24—Measuring inclination, e.g. by clinometers, by levels by using liquids in closed containers partially filled with liquid so as to leave a gas bubble
- G01C9/26—Details
- G01C9/32—Means for facilitating the observation of the position of the bubble, e.g. illuminating means
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electroluminescent Light Sources (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE359403A true BE359403A (enrdf_load_stackoverflow) |
Family
ID=32912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE359403D BE359403A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE359403A (enrdf_load_stackoverflow) |
-
0
- BE BE359403D patent/BE359403A/fr unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR900007280A (ko) | 비 영상 광원 | |
| CH515514A (fr) | Microscope de poche | |
| US2176554A (en) | Periscope | |
| BE359403A (enrdf_load_stackoverflow) | ||
| ES2233651T3 (es) | Dispositivo optico portatil de aumento. | |
| US6199710B1 (en) | Optical device | |
| BE1011613A3 (fr) | Niveau a bulle d'air. | |
| US2026176A (en) | Magnifying glass | |
| EP0024326B1 (fr) | Dispositif optique afocal | |
| US759622A (en) | Sighting-tube for vessels. | |
| FR2518696A1 (fr) | Robinet a soutirer | |
| FR2565702A1 (fr) | Appareil et procede permettant l'observation de l'exterieur d'indicateurs inclus, notamment de compteurs enterres | |
| US3624382A (en) | Meter-reading devices | |
| BE527534A (enrdf_load_stackoverflow) | ||
| US1190498A (en) | Diffusion-lens for electric signs and the like. | |
| AT118929B (de) | Fokuslibelle. | |
| CH156260A (fr) | Réflecteur de lampe à incandescence. | |
| GB276220A (en) | Improvements in reflector-refractor light fittings | |
| CH164457A (fr) | Dispositif optique servant notamment à la signalisation. | |
| FR2551870A1 (fr) | Appareil de fixation cryogenique | |
| CH464372A (fr) | Procédé de construction d'une enceinte en béton pour réacteur | |
| USRE6343E (en) | Improvement in lenses for head-lights | |
| SU40860A1 (ru) | Головна часть перископа | |
| EP0045098B1 (fr) | Articulation étanche d'une pièce oscillante dans un support | |
| EP0094878A2 (fr) | Visionneuse pour diapositives |