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Engineering
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journal:(Engineering Record)
The signal system on the subway division, interborough rapid transit co., New York
Standard gauges for wheel flanges and their relation to gauge of track, frogs, crossovers, etc
The Bridgeport improvements of the New York, New Haven and Hartford railroad
When is it feasible and economical to use trailers with motor trucks?
Handling of filipino labor one of problems in construction of Baguio railroad