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| Patents for Portalign Tool Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,874,810 | Apr. 01, 1975 | W.D. Russell | Drill guide | drilling and boring | |
| 4,335,512 | Jun. 22, 1982 | M.I. Sheps, G.S. Christensen, G.E. Robson | Attachment for a power hand saw | handheld power tool accessories | |