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Extensible Brattice and Cantilevered Roof Mounted Support System Therefore
The invention relates in general to extensible brattices for underground mine face ventilation, and in particular to an extensible cantilevered brattice system adapted to be mounted from the roof bearing plates in room-and-pillar coal mining sections using exhaust face ventilation.
Extensible Brattice and Cantilevered Roof Mounted Support System Therefore
The invention relates in general to extensible brattices for underground mine face ventilation, and in particular to an extensible cantilevered brattice system adapted to be mounted from the roof bearing plates in room-and-pillar coal mining sections using exhaust face ventilation.
Extensible Brattice and Cantilevered Roof Mounted Support System Therefore
E. F. Divers (Autor:in)
1978
11 pages
Report
Keine Angabe
Englisch
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