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Patents for N. A. Acker | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 392,116 | Oct. 30, 1888 | R.B. Gilchrist | Cork-extractor | |
![]() | 644,675 | Mar. 06, 1900 | J.T. Ludlow | Rope-tramway system | |
![]() | D32,795 | Jun. 05, 1900 | J. Simonds | Design for a Member for Saw Handles | |
![]() | 840,418 | Jan. 01, 1907 | W.F. Arnold | Plane Frog | |
![]() | 879,175 | Feb. 18, 1908 | F.A. Huntington | Crushing-mill |