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| Patents Granted on 1990-02-?? | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,898,524 | Feb. 06, 1990 | J.K. Butzen | Fluid Driven Rotary Motor | ||
| 4,899,445 | Feb. 13, 1990 | J.E. Erbrick, Jr., M.E. Strohecker, R.S. Erbrick | Hand-Held Ratchet Tool for Moving a Pair of Jaw Members Toward and Away From Each Other | shears | |
| 4,899,626 | Feb. 13, 1990 | K. Lymburner | Bolt or stud mounting and extracting tool | stud extractors | |