Inventions of steam distribution valves and combustion chambers; 3-cyl locomotives and hollow axles. (See also - n 14 Oct 2 1942 p 324-6, n 25 Dec 18 1942)
Old railway inventions revived
Ry Gaz
Railway Gazette and Railway News ; 77 , n 26
1942
4 pages
Aufsatz (Zeitschrift)
Englisch
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