DE1489719U - - Google Patents
Info
- Publication number
- DE1489719U DE1489719U DENDAT1489719D DE1489719DU DE1489719U DE 1489719 U DE1489719 U DE 1489719U DE NDAT1489719 D DENDAT1489719 D DE NDAT1489719D DE 1489719D U DE1489719D U DE 1489719DU DE 1489719 U DE1489719 U DE 1489719U
- Authority
- DE
- Germany
- Prior art keywords
- sealing ring
- inner edge
- head
- helmet
- airtight
- 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 16
- 239000004744 fabric Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 description 9
- 239000000428 dust Substances 0.000 description 4
- 239000003973 paint Substances 0.000 description 3
- 238000005488 sandblasting Methods 0.000 description 3
- 239000011324 bead Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
Landscapes
- Helmets And Other Head Coverings (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1489719U true DE1489719U (enExample) |
Family
ID=794506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT1489719D Active DE1489719U (enExample) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1489719U (enExample) |
-
0
- DE DENDAT1489719D patent/DE1489719U/de active Active
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