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Development of Blind Shaft Boring System.

Authors
Friant-JE; Sands-PF
Source
Proc 3rd Symp on Ungrd Min NCA/BCR Coal Conf & Expo IV 1977 Oct; :42-85
Link
NIOSHTIC No.
10001595
Abstract
MISSING
Publication Date
19771001
Document Type
OP;
Fiscal Year
1978
NTIS Accession No.
NTIS Price
NIOSH Division
SRC;
Source Name
Proc. 3rd Symp. on Ungrd. Min. NCA/BCR Coal Conf. & Expo IV October 18-20, 1977, PP. 42-85
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