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Primary view of Irrigator
Phillips, Edwin R.
January 18, 1921
Primary view of Spark-Arrester.
Ashby, Bert A.
January 27, 1920
Primary view of Packet-Holder.
Ashby, Bert
January 27, 1920
Primary view of Snap Fastener
Warrington, Samuel W.
January 18, 1921
Primary view of Saw Gaging and Setting Tool.
Barger, Bernard J.
January 20, 1920
Primary view of Dynamo-Electric Machine
Kuhn, Preston Holmes
January 10, 1922
Primary view of Film Winding Attachment
Mansfield, Clarence H.
January 6, 1920
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