Results of inspection of train service on the Schuylkill Division. (3000 w.) (72514)
Efficiency testing on the Pennsylvania
R A G
1916
Article (Journal)
English
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Pennsylvania. Pennsylvania improves efficiency
Engineering Index Backfile | 1928
The scale testing car of the Pennsylvania railroad
Engineering Index Backfile | 1894
Engineering Index Backfile | 1910
Wiley | 1989
|Origin and development of the Pennsylvania R. R. testing laboratory
Engineering Index Backfile | 1923
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