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| Patents Granted on 1977-06-28 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,032,250 | Jun. 28, 1977 | J.A. Lavallee | Reamer construction | reamers | |
| 4,032,251 | Jun. 28, 1977 | T.A. Ribich | Countersinking and deburring tool | metalworking countersinks | |