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Device and a method for drainage of water from rock caves

E - Fixed Constructions – 21 – F

Patent

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Device and method for closing off a mine gallery especially...

E - Fixed Constructions – 21 – F

Patent

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Device for shielding ground workings with means for...

E - Fixed Constructions – 21 – F

Patent

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Disposal of the residue of the exhaust gas washers of...

E - Fixed Constructions – 21 – F

Patent

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Door system for a mine stopping

E - Fixed Constructions – 21 – F

Patent

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Double-wall underground container for storing liquids and...

E - Fixed Constructions – 21 – F

Patent

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Drainage system for tunnels

E - Fixed Constructions – 21 – F

Patent

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Drift control for resinous binders

E - Fixed Constructions – 21 – F

Patent

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Drop manhole precast encasement

E - Fixed Constructions – 21 – F

Patent

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Dust catcher

E - Fixed Constructions – 21 – F

Patent

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Dust scrubber

E - Fixed Constructions – 21 – F

Patent

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