A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
For ventilation of mines and tunnels
For ventilation of mines and tunnels; paper describes special brand of flexible cloth pipe and its advantages for ensuring supply of respirable air at working places.
For ventilation of mines and tunnels
For ventilation of mines and tunnels; paper describes special brand of flexible cloth pipe and its advantages for ensuring supply of respirable air at working places.
For ventilation of mines and tunnels
Para La Ventilacion de Minas y Tuneles
Mineral Survey ; 4
1938
Article (Journal)
Spanish
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For ventilation of mines and tunnels
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