DE80428C - - Google Patents
Info
- Publication number
- DE80428C DE80428C DENDAT80428D DE80428DA DE80428C DE 80428 C DE80428 C DE 80428C DE NDAT80428 D DENDAT80428 D DE NDAT80428D DE 80428D A DE80428D A DE 80428DA DE 80428 C DE80428 C DE 80428C
- Authority
- DE
- Germany
- Prior art keywords
- event
- arrangement
- back pressure
- mine safety
- lamp
- 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
- 238000004880 explosion Methods 0.000 claims 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 230000001681 protective effect Effects 0.000 claims 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
- F21L23/00—Non-electric hand-lamps for miners
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE80428C true DE80428C (enExample) |
Family
ID=352985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT80428D Active DE80428C (enExample) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE80428C (enExample) |
-
0
- DE DENDAT80428D patent/DE80428C/de active Active
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