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Modern Underground Mining Technologies for Pitching Coalbed Extraction.

Authors
Anonymous
Source
NTIS: De 81028717
Link
NIOSHTIC No.
10003676
Abstract
MISSING
Document Type
CP;
NTIS Accession No.
PB81028717
NTIS Price
NIOSH Division
WO;
Source Name
NTIS: De 81028717
State
DE;
Performing Organization
Central Mining Inst., 14-01-00
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