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| Patents Granted on 1983-06-?? | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,386,886 | Jun. 07, 1983 | M.J. Neal | Adjustable vortex pump | ||
| 4,387,852 | Jun. 14, 1983 | C.A. Mattson, J. Michel, A. Domagalski | Fertilizer spreader | ||
| 4,388,780 | Jun. 21, 1983 | S.C. Rees | Electric powered wet stone | ||
| 4,390,953 | Jun. 28, 1983 | R. Johnstone | Unmanned Diagnostic Communications System for Computer Controlled Machine Tools | machine tool controls | |