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| All Patents in class 83/550 | |||||
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| Number | Date | Patentee | Title | Type | |
| 221,253 | Nov. 04, 1879 | J.F. Rider | Improvement in machines for making scroll-saws | tool making machines | |
| 626,448 | Jun. 06, 1899 | G.B. Tennant | Metal Shearing Machine | metal shearing machines | |