New specification on car retarders and six revised specifications. (See also - discussion p 628-D100)
Report of committee on interlocking
Ry. Age (Daily Edition)
Railway Age ; 88 , n 10B
1930
Aufsatz (Zeitschrift)
Englisch
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Engineering Index Backfile | 1943
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Report of committee on interlocking
Engineering Index Backfile | 1929
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