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| Patents for Syracuse Twist Drill Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 313,552 | Mar. 10, 1885 | J.E. Sweet | Micrometer Gauge | micrometers | |
| 358,731 | Mar. 01, 1887 | H. Clark | Countersink | countersinks | |