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| Patents Granted on 1977-04-12 | |||||
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| Number | Date | Patentee | Title | Type | |
| D244,002 | Apr. 12, 1977 | B.R. Bonin | Cork Retriever | non worm cork extractors | |
| 4,016,782 | Apr. 12, 1977 | H.L. Guimarin | Adjustable Ratchet Wrench | wrench jaw components | |