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Girder bridge replaces truss over fast express tracks
Pennsylvania R. R., near Langhorne, Pa. (2000 w.) (68983)
Girder bridge replaces truss over fast express tracks
Pennsylvania R. R., near Langhorne, Pa. (2000 w.) (68983)
Girder bridge replaces truss over fast express tracks
E R
1916
Ills.
Aufsatz (Zeitschrift)
Englisch
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