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Primary view of Well-Screen.
Layne, Mahlon, E.
May 27, 1913
Primary view of Track-Laying Machine
Simpson, Charles, M. & Smith, Howard F.
May 27, 1913
Primary view of Method of Forming Concrete Foundations and the Like.
Layne, Mahlon E.
May 27, 1913
Primary view of Garbage-Receptacle
Lubbock, William L.
May 3, 1913
Primary view of Smoothing-Drag
Davison, Morgan
May 20, 1913
Primary view of Feed Mixer
Dixon, Elbert S. & Werner, Henry E.
May 20, 1913
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