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| Patents Granted on 1972-03-28 | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-896,319 | Mar. 28, 1972 | C.E. Kirk | Radial saw turntable | radial arm saws | |
| 3,651,724 | Mar. 28, 1972 | H.W. Huffman | Method and apparatus for producing card sets | ||
| 3,652,879 | Mar. 28, 1972 | S.C. Rees, L.E. Plunkett | Electric power tool | handheld power drills | |