Description of mechanical ballast shapers in use on Erie Railroad. Indexed in Engineering Index 1943 p 874, from Ry Eng and Maintenance June 1943.
Mechanical ballast dressing
Ry Gaz
Railway Gazette and Railway News ; 80 , n 2 ; p 41-42
1944
2 pages
Aufsatz (Zeitschrift)
Englisch
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Erie uses mechanical ballast shapers
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