Illustrates and describes improvements in track signals and cars. (2500 w.) (No. 37261)
High-speed service between Allentown and Philadelphia
Elec Ry Jour
1912
Aufsatz (Zeitschrift)
Englisch
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Flood-control project for Allentown, Pennsylvania
Engineering Index Backfile | 1953
All-electric interlocking at Allentown
Engineering Index Backfile | 1909