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All Patents in class 122/360
Patents 1 - 3 of 3
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
  381,870Apr. 24, 1888A. WorthingtonBoiler
696,240Mar. 25, 1902C. HollySteam Boiler
  1,408,244Feb. 28, 1922J.F. BakerBoiler
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