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| Patents Granted on 1980-03-25 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,194,543 | Mar. 25, 1980 | L.M. Cotton | Grooving Indexer for Routing Apparatus | handheld power tool accessories | |
| 4,194,703 | Mar. 25, 1980 | J.G. Roe | Tape measure | tape measures | |