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All Patents in class 15/104.13
Patents 1 - 3 of 3
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
  1,110,319Sep. 15, 1914A.F. FroussardTube Cleaner
  1,221,984Apr. 10, 1917A.F. FroussardTube Cleaner
  1,367,314Feb. 01, 1921A.F. FroussardTube Cleaner
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