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Patents for Nelson Johnson
Patents 1 - 11 of 11
First set of recordsLast set of records
194May 15, 1837N. Johnson, H. JohnsonSawmill-gate claspssawmills
73,338Jan. 14, 1868N. JohnsonImprovement in Swages for Saw Teeth
80,632Aug. 04, 1868N. JohnsonImprovement in head-blocks for sawmillssawmill headblocks
127,061May 21, 1872N. JohnsonImprovement in circular-saw teeth
127,062May 21, 1872N. JohnsonImprovement in saw-millssawmill headblocks
133,036Nov. 12, 1872N. JohnsonImprovement in saws
134,290Dec. 24, 1872N. JohnsonImprovement in insertible saw-teethinsertible saw teeth
CA-2,450Jun. 11, 1873W.E. Craig, N. JohnsonCircular saw teethinsertible saw teeth
200,833Mar. 05, 1878N. JohnsonImprovement in means for securing insertible saw-teethinsertible saw teeth
211,097Jan. 07, 1879N. JohnsonImprovement in insertible saw-teethinsertible saw teeth
313,427Mar. 03, 1885N. JohnsonSaw-toothinsertible saw teeth
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