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| Patents for Joseph Brewer | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,432,664 | Oct. 17, 1922 | J. Brewer | Direct-Reading Micrometer | measurement gauges | |
| 1,591,740 | Jul. 06, 1926 | J. Brewer | Micrometer | micrometers | |