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All Patents in class 417/198 | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 35,575 | Jun. 10, 1862 | J. Millholland | Improvement in Giffard's injectors | |
206,054 | Jul. 16, 1878 | H.P. Tenant | Steam-Jet Pump |