Automatic derailing switch at Roslyn No. 3 mine, Northwestern Improvement Company, Roslyn, Wash.
| Other author | Ash, S. H. (Simon Harry), 1889- |
| Other author | Kudlich, Rudolf H., 1883- |
| Other author | Northwestern Improvement Company. |
| Format | Microform |
| Publication Info | Washington, D.C. : [publisher not identified], 1930. |
| Description | 3 pages : illustrations ; cm. |
| Subjects |
| Series | Mines Bur. Info. Circ. No. 6226 |
| General note | Reuse of record except for individual research requires license from LexisNexis Academic & Library Solutions. |
| General note | [On mine safety device] |
| Citation/References note | CIS Index to U.S. Executive Branch Documents, 1910-1932 Part 2 |
| Reproduction note | Joyner- Microfiche. [Bethesda, Md.]: LexisNexis Academic & Library Solutions, 1997, 11 x 15 cm. (CIS US Executive Branch Documents : no. C22.11-6226) |
| Govt. docs number | C 22.11:6226 |
Availability
| Library | Location | Call Number | Status | Item Actions |
|---|---|---|---|---|
| Joyner | Microforms B300 | C22.11-6226 | ✔ Available |