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Primary view of Apparatus for Cleaning Deep Wells.
Deats, George W.
July 3, 1917
Primary view of Visual Automatic-Setback Annunicator.
Stephens, Lee
July 24, 1917
Primary view of Scarifier and Blocker.
Weisenborn, George P. A.
July 10, 1917
Primary view of Freight Gang-Plank.
Simpson, Louis
July 3, 1917
Primary view of Resilient Wheel.
Fuller, Robert Nelson
July 3, 1917
Primary view of Auxiliary Roll Former for Linter Condensers.
Prater, Charles E.
July 5, 1917
Primary view of Apparatus for Cleaning Deep Wells.
Deats, George W.
July 31, 1917
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