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| All Patents in class 212/195 | |||||
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| Number | Date | Patentee | Title | Type | |
| 233,160 | Oct. 12, 1880 | J.B. Mooney | Steamboat-staging | nautical | |
| 1,254,282 | Jan. 22, 1918 | J.J. Schulz | Portable Crane | cranes | |
| 1,281,393 | Oct. 15, 1918 | D. Kendall | Safety Device for Forging Manipulators | forging presses | |