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Patents for William Eiermann | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 704,657 | Jul. 15, 1902 | S. McClellan | Joist-boring tool | |
![]() | 714,939 | Dec. 02, 1902 | S. McClellan | Combined bit-brace and chain and bench drill |