A suggestion. B. Pontifex. Describes a scheme for automatically removing the foul air by suction pipes. (500 w.)
The ventilation of deeplevel underground railways
Elec Engr, Lond
1903
Aufsatz (Zeitschrift)
Englisch
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SAGE Publications | 1990
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Engineering Index Backfile | 1935
|Engineering Index Backfile | 1902
Engineering Index Backfile | 1902
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