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| All Patents in class 102/277.1 | |||||
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| Number | Date | Patentee | Title | Type | |
| 34,040 | Dec. 24, 1861 | S. Sawyer | Improved fuse-hood for shells | projectile shells | |
| 38,699 | May 26, 1863 | A.M. Sawyer | Improvement in igniting time-fuses of shells | percussion fuses | |