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Primary view of Wire-Tightener.
Wilson, James G.
June 24, 1919
Primary view of Projectile.
Wilkins, Willie A.
June 24, 1919
Primary view of Telegraph-Repeater
McKibben, Charles W.
June 24, 1919
Primary view of Plow.
Marshall, Andrew Jackson
June 24, 1919
Primary view of Drill-Bit
Humason, Granville A.
January 24, 1919
Primary view of Combined Rail-Anchor and Tie-Plate
Johnson, Robert
January 24, 1919
Primary view of Cranking Device
Harris, Irvin F.
June 24, 1919
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