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Use of the churn drill at lime-plant quarries
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Published Year
1920-1929 (1)
Subject
Lime (1)
Lime industry--United States (1)
Quarries and quarrying (1)
Quarries and quarrying--Equipment and supplies (1)
Rock-drills (1)
Rotary percussion drills (1) *
Author
Bowles, Oliver, (1) *
