High angle mining system
Contributors: ESD Corporation.; United States. Bureau of Mines. Branch of Procurement.
Series: A mining research contract report; [OFR -- 40-91]; Mining research contract report; Open file report (United States. Bureau of Mines) -- 91-40.
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1983
Place of publication: Washington, D.C
Language: eng
Format: Microform
Number of pages: 150
Subjects: Coal-mining machinery -- Technological innovations.; Strip mining -- United States -- Technological innovations.; Coal augers -- Technological innovations.; Buckets (Excavating machinery) -- Technological innovations.
Notes: "ESD Corporation."

Author: D. Christofferson.

Distributed to depository libraries in microfiche.

Shipping list no.: 94-0583-M.

"June 1983."

Includes bibliographical references.

Final report. 9/80-6/83.

Microfiche. [Washington, D.C. : Supt. of Docs., U.S. G.P.O., 1994] 2 microfiches : negative.

Bureau of Mines, Branch of Procurement. JO-133925.