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Primary view of Visual Automatic-Setback Annunicator.
Stephens, Lee
July 24, 1917
Primary view of Hydraulic Pressure and Time Indicator
Helm, Clyde D.
December 24, 1918
Primary view of Gas Generator.
Walton, James C. & Wisherd, John A.
November 24, 1914
Primary view of Pass Book
Roystone, W.
June 24, 1914
Primary view of Feed-Trough
Davis, James H.
September 24, 1912
Primary view of Rock Drill
Speer, George F.
December 24, 1912
Primary view of Auxiliary Air-Feed for Carbureters.
Bills, Thomas M. & Harvey, Thomas H.
October 24, 1916
Primary view of Crude-Oil Burner.
Bass, Robert E.
May 24, 1910
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