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norman s petersen
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Materials substitution study
Norman S. Petersen · U.S. Bureau of Mines; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.
42 sayfa · 1971
Die-casting
Trends and outlook for manufacture of artificial abrasives in the Pacific Northwest
Norman S. Petersen · Bonneville Power Administration
37 sayfa · 1965
Abrasives industry / Economic conditions