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All Patents in class 254/293 | |||||
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Picture | Number | Date | Patentee | Title | |
710,954 | Oct. 14, 1902 | H.N. Covell | Drum-reversing device for winding-engines | ||
![]() | 972,831 | Oct. 18, 1910 | W.A. Gilchrist, J.H. Dickinson | Logging system | |
![]() | 1,825,359 | Sep. 29, 1931 | R.E. Manley | Light wrecking crane |