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Patents for William Hilderbrand | |||||
Number | Date | Patentee | Title | Type | |
1,103,243 | Jul. 14, 1914 | G. Amborn | Chain Pipe Vise | pipe and chain vises | |
1,103,896 | Jul. 14, 1914 | G. Amborn | Chain Pipe Vise | pipe and chain vises |