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| Patents Granted on 1998-04-?? | |||||
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| Number | Date | Patentee | Title | Type | |
| D393,219 | Apr. 07, 1998 | J.R. Beall, M.S. McGuire | Plumb bob | plumb bobs | |
| 5,738,483 | Apr. 14, 1998 | P.D. Terpstra | Lift and Invert Mechanism | workpiece changers and storage mechanisms | |
| EP-835,725 | Apr. 15, 1998 | I.E. Wolfe | Vice with workpiece hold down force | metalworking machine vises | |
| 5,741,102 | Apr. 21, 1998 | R.R. Trimmell, G.W. Everett | Removable quasi-ratchet fastener | ||