Recent progress in slate technology.

Other author Bowles, Oliver, 1877-1958.
Format Microform
Publication InfoWashington, D.C. : [publisher not identified], 1926.
Description9 pages : illustrations ; cm.
Subjects

SeriesMines Bur. Rpt. of Investigation No. 2766
General noteReuse of record except for individual research requires license from LexisNexis Academic & Library Solutions.
General note[On manufacturing methods]
Citation/References note CIS Index to U.S. Executive Branch Documents, 1910-1932 Part 2
Reproduction noteJoyner- Microfiche. [Bethesda, Md.]: LexisNexis Academic & Library Solutions, 1997, 11 x 15 cm. (CIS US Executive Branch Documents : no. C22.12-2766)
Govt. docs number C 22.12:2766