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Patents for Henry Belfield | |||||
Number | Date | Patentee | Title | Type | |
120,023 | Oct. 17, 1871 | H. Belfield | Improvement in Machines for Cutting the Teeth of Wheels | gear making machines | |
375,810 | Jan. 03, 1888 | J.R. Goehring | Injector | feedwater apparatus |