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| All Patents in class 116/70 | |||||
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| Number | Date | Patentee | Title | Type | |
| 14,449 | Mar. 18, 1856 | J. Frick | Feed and Blow-Off Apparatus for Steam-Boilers | water injectors | |
| 1,265,676 | May 07, 1918 | W. Klump | Gage | gauges | |