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Army Corps of Engineers
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58
U. S. Lake Survey
18
Tugboats
10
Fortifications
8
Manitowoc
8
Manitowoc Dry Dock Company
8
Measurement
8
Casemates
6
Detroit River
6
Ordnance
6
Survey Vessels
6
Armaments
4
Measuring Tools
4
Motor Launches
4
Nautical Charts
4
Protractors
4
Scarp Walls
4
St. Lawrence River
4
Barracks
2
Calibration
2