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| Patents Granted on 1957-08-06 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,801,475 | Aug. 06, 1957 | F. Meyer, Jr. | Gage for Measuring Circumambient Surfaces | special measuring tools | |
| 2,801,504 | Aug. 06, 1957 | J.R. MacIntosh, S.A. Mercurio | Abrasive wheel structure | grinding wheels | |
| 2,801,621 | Aug. 06, 1957 | R. Anderson, P.R. Hunt | Fuel-pump carburetor | ||