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Patents for H. B. Smith | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 6,343 | Apr. 17, 1849 | H.B. Smith | Mortiser for window-blind stiles | |
![]() | 20,824 | Jul. 06, 1858 | H.B. Smith | Balanced head for molding machine |