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Patents Granted on 1917-02-13
Patents 1 - 5 of 5
First set of recordsLast set of records
1,215,372Feb. 13, 1917A.P. HawnTractorinternal combustion traction engines
1,215,564Feb. 13, 1917J.C. McLachlanMold for casting shellsrockets and grenades
1,215,584Feb. 13, 1917N.E. SherwoodRope making machinerope maker
1,216,010Feb. 13, 1917H. TallaksonMarker-Gage and Squareclapboard markers
1,216,105Feb. 13, 1917J.A. Hawthorne, Jr., J.E. GagnonPlumb, Level, and Squarelevels
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