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Patents for Wm. Gardam & Son | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 123,886 | Feb. 20, 1872 | W. Gardam, J. Gardam | Improvement in drilling-machines | |
![]() | 682,585 | Sep. 10, 1901 | J.W. Gardam, H.D. Cotter | Dipping-needle compass |