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| Patents for K-D Mfg Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,713,761 | May 21, 1929 | M.C. Dellinger, H.W. Kulp | Collapsible Valve Spring Lifter Lock | valve spring tools | |
| 2,531,135 | Nov. 21, 1950 | H.W. Kulp | Adjustable Hacksaw Frame | hacksaws | |
| 3,838,615 | Oct. 01, 1974 | W.L. Diffenderfer, F.R. McFarland | OIL FILTER WRENCH | automotive tools | |