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Patents for A. M. Dorr
Patents 1 - 3 of 3
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
966,105Aug. 02, 1910J.P. LavigneAutomatic die-head
  1,016,569Feb. 06, 1912J.P. LavigneLubricator
1,087,555Feb. 17, 1914J. Sand, J. Sand, Jr.Level
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