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Patents for Honolulu Iron Works
Patents 1 - 4 of 4
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
  1,021,829Apr. 02, 1912W.J. Dyer, A.F. EwartSugar Cane Mill
  1,061,535May 13, 1913A.F. EwartSugar Cane Mill
  1,106,291Aug. 04, 1914A.F. EwartSugar Cane Mill
1,106,301Aug. 04, 1914C.J. HedemannSugar Cane Mill
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