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Illinois mines guard their timbered shaft bottoms by fusible-plug sprinklers
State statutes demand elimination of fire hazards below ground. To secure this protection one operator uses fusible fireplug sprinkler heads on pressure lines containing rain water only.
Illinois mines guard their timbered shaft bottoms by fusible-plug sprinklers
State statutes demand elimination of fire hazards below ground. To secure this protection one operator uses fusible fireplug sprinkler heads on pressure lines containing rain water only.
Illinois mines guard their timbered shaft bottoms by fusible-plug sprinklers
Coal Age
Baker, Donald J. (author)
Coal Age ; 18
1920
4 pages
8 Figs.
Article (Journal)
English
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TIBKAT | 1990
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