BE499535A - - Google Patents
Info
- Publication number
- BE499535A BE499535A BE499535DA BE499535A BE 499535 A BE499535 A BE 499535A BE 499535D A BE499535D A BE 499535DA BE 499535 A BE499535 A BE 499535A
- Authority
- BE
- Belgium
- Prior art keywords
- mirror
- instrument
- angle
- mirrors
- radius
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 claims description 4
- 239000011521 glass Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/12—Instruments for setting out fixed angles, e.g. right angles
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Road Signs Or Road Markings (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE499535A true BE499535A (enExample) |
Family
ID=141912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE499535D BE499535A (enExample) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE499535A (enExample) |
-
0
- BE BE499535D patent/BE499535A/fr unknown
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