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| Patents for J. Grant Culverwell | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 606,395 | Jun. 28, 1898 | E.H. Shaw | Combination-tool | |
 | 612,454 | Oct. 18, 1898 | M. Blackwell | Pipe Wrench | |
 | 613,613 | Nov. 01, 1898 | D. Warner | Axle Nut Wrench | |
 | 630,825 | Aug. 08, 1899 | D.M. Campbell | Winding Tool For Bale Fastenings | |