Online Books by
D. C. Ludwigson
Books from the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Ludwigson, D. C.: The physical metallurgy of precipitation-hardenable stainless steels (Columbus, Ohio : Defense Metals Information Center, Battelle Memorial Institute, 1959., 1959), also by A. M. Hall and Defense Metals Information Center (U.S.) (page images at HathiTrust)- Ludwigson, D. C.: Semiaustenitic precipitation-hardenable stainless steels (Columbus, Ohio : Defense Metals Information Center, Battelle Memorial Institute, 1961., 1961), also by Defense Metals Information Center (U.S.) (page images at HathiTrust)
- Ludwigson, D. C.: A summary of comparative properties of air-melted and vacuum-melted steels and superalloys (Columbus, Ohio : Defense Metals Information Center, Battelle Memorial Institute, 1960., 1960), also by F. R. Morral and Defense Metals Information Center (U.S.) (page images at HathiTrust)
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