Superseded
Draft standard
Historical
DIN 21639:1998-05
Power assisted air gates - Travel-way air locks
Summary
Wetterbauwerke für den Bergbau - Fahrwegschleusen - Druckentlastete Wettertüren
Technical characteristics
| Publisher | Deutsche Institut für Normung e.V. (DIN) |
| Publication Date | 05/01/1998 |
| Page Count | 8 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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Previous versions
01/06/2019
Active
Most Recent
01/09/2016
Superseded
Historical
01/09/1999
Superseded
Historical