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Primary view of Ink Feeder for Pens.
Hine, Frank B.
August 3, 1915
Primary view of Means for Opening or Closing Elevator-Doors.
Bell, Chester L.
August 3, 1897
Primary view of Upward-Current Separating Process and Device.
Allen, Charles
July 3, 1917
Primary view of Economy Air-Brake Apparatus
Canion, William G.
August 3, 1915
Primary view of Fuel Economizer
Phillips, Edwin R.
May 3, 1910
Primary view of Automatic Air Device for Gas Engines.
Rivers, Charles A.
April 3, 1917
Primary view of Athletic Shoe
Rokahr, Charles
December 3, 1918
Primary view of Auto-Door Stop
Hill, Ulysses H.
November 3, 1908
Primary view of Aparatus for Cleaning Lechuguilla, Henequen, and Analogous Fibrous Plants.
Aguilar, Alfonso
September 3, 1918
Primary view of Locking Device for Motor-Vehicles.
Harris, Robert E.
May 3, 1921
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