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Patents for R. W. Sommers | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 423,090 | Mar. 11, 1890 | F.F. Smith | Combined Square, Plumb, and Level | |
![]() | 682,294 | Sep. 10, 1901 | H. Terlin | Compasses, Cailipers, etc. |