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Primary view of Lubricating Device for Rotary Drills
Hughes, Howard Robard
April 20, 1915
Primary view of Plunger For Deep-Well Pumps
Coulson, William J.
April 20, 1920
Primary view of Reamer
Hughes, Howard R.
April 20, 1915
Primary view of Inner Tube for Pneumatic Tires
Culmore, March
April 20, 1909
Primary view of Hose-Coupling.
Hume, John
April 20, 1915
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