DE258749C - - Google Patents
Info
- Publication number
- DE258749C DE258749C DENDAT258749D DE258749DA DE258749C DE 258749 C DE258749 C DE 258749C DE NDAT258749 D DENDAT258749 D DE NDAT258749D DE 258749D A DE258749D A DE 258749DA DE 258749 C DE258749 C DE 258749C
- Authority
- DE
- Germany
- Prior art keywords
- colored pencil
- colored
- sprinkling
- caused
- strip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002360 explosive Substances 0.000 claims description 4
- 238000004880 explosion Methods 0.000 claims description 3
- 230000002262 irrigation Effects 0.000 claims description 3
- 238000003973 irrigation Methods 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 238000005065 mining Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000035939 shock Effects 0.000 claims 1
- 230000001681 protective effect Effects 0.000 description 2
- 238000005422 blasting Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Spray Control Apparatus (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE258749C true DE258749C (enrdf_load_stackoverflow) |
Family
ID=516548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT258749D Active DE258749C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE258749C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT258749D patent/DE258749C/de active Active
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