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An electric hydraulic dredge
Illustrates and describes an electrically operated suction dredge. (1500 w.) (No. 44885)
An electric hydraulic dredge
Illustrates and describes an electrically operated suction dredge. (1500 w.) (No. 44885)
An electric hydraulic dredge
Eng News
1913
Aufsatz (Zeitschrift)
Englisch
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