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| All Patents in class 89/14.7 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,443 | Feb. 01, 1842 | R. Cook | Manufacture of Wrought-Iron and Steel Cannons | ||
| 37,898 | Mar. 17, 1863 | A. Bonzano | Improvement in Machinery for Rifling Cannons | rifling machines | |