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12 results returnedCoal analyses from twenty-five laboratories compared
Annual report of research and technologic work on coal, fiscal year 1937
Annual report of research and technologic work on coal fiscal year 1938
Developments in coal research and technology in 1937 and 1938
Annual report of research and technologic work on coal, fiscal year 1940
Annual report of research and technologic work on coal, fiscal year 1939
Bureau of Mines research on the hydrogenation and liquefaction of coal and lignite
Annual report of research and technologic work on coal :fiscal year 1944
Annual report of research and technologic work on coal :fiscal year 1945
Annual report of research and technologic work on coal :fiscal year 1947
Annual report of research and technologic work on coal :fiscal year 1948
Annual report of research and technologic work on coal :fiscal year 1949
Published Year
Subject
- Coal (12) *
- Coal mines and mining--United States (9)
- Coal--Analysis (1)
- Hydrogenation (1)
- Lignite (1)
- Motor fuels (1)
- Research, Industrial (1)
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