New techniques for reducing stopping leakage

Author: Timko, Robert J.
Additional Authors: Thimons, Edward D.
Year: 1983
Document Type: USBI
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I28.27:8949
Series: Information circular / Unites States. Bureau of Mines ;
Report Number: 8949
Subject: Concrete stoppings (Mining)--Airtightness
Link: https://hdl.handle.net/2027/mdp.39015078455360

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