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Patents for James Ohlen & Sons
Patents 1 - 9 of 9
First set of recordsLast set of records
NumberDatePatenteeTitleType
92,846Jul. 20, 1869H.A. LanmanImprovement in sawssawblades
218,280Aug. 05, 1879A. KriegerImprovement in clamping-pieces for insertible saw-teethinsertable saw teeth
221,602Nov. 11, 1879J. OhlenImprovement in insertible saw-teethinsertable saw teeth
222,304Dec. 02, 1879R.H. OsgoodImprovement in inserted saw-teethinsertable saw teeth
248,761Oct. 25, 1881A. KriegerInsertible saw-toothinsertable saw teeth
262,821Aug. 15, 1882J. OhlenSaw-handlecrosscut saw handles
315,419Apr. 07, 1885A. KriegerProtector for insertible saw-teethinsertable saw teeth
334,241Jan. 12, 1886A. KriegerInsertible saw-toothinsertable saw teeth
340,051Apr. 13, 1886A. KriegerSaw-toothsaw teeth
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