DE1473756U - - Google Patents
Info
- Publication number
- DE1473756U DE1473756U DENDAT1473756D DE1473756DU DE1473756U DE 1473756 U DE1473756 U DE 1473756U DE NDAT1473756 D DENDAT1473756 D DE NDAT1473756D DE 1473756D U DE1473756D U DE 1473756DU DE 1473756 U DE1473756 U DE 1473756U
- Authority
- DE
- Germany
- Prior art keywords
- filter
- mask according
- thread
- mask
- half mask
- 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
- 238000007789 sealing Methods 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 239000011324 bead Substances 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims description 2
- 239000001913 cellulose Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 claims 1
- 239000004566 building material Substances 0.000 description 4
- 238000011045 prefiltration Methods 0.000 description 2
- 230000005574 cross-species transmission Effects 0.000 description 1
- 210000004013 groin Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1473756U true DE1473756U (enrdf_load_stackoverflow) |
Family
ID=779646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT1473756D Active DE1473756U (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1473756U (enrdf_load_stackoverflow) |
-
0
- DE DENDAT1473756D patent/DE1473756U/de active Active
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