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Reinforced concrete screw-conveyor and elevator construction
Reinforced concrete screw-conveyor and elevator construction. (800 w.) (No. 59438 A)
Reinforced concrete screw-conveyor and elevator construction
Reinforced concrete screw-conveyor and elevator construction. (800 w.) (No. 59438 A)
Reinforced concrete screw-conveyor and elevator construction
W. Engng
Findlay, D.C. (author)
1915
Ills.
Article (Journal)
English
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