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| All Patents in class 451/70 | |||||
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| Number | Date | Patentee | Title | Type | |
| 273,303 | Mar. 06, 1883 | J.L. Perry | Sanding machine | sanding machines | |
| 309,101 | Dec. 09, 1884 | E. Samuel | Metal Cutting Machine | metal sawing machines | |
| 389,826 | Sep. 18, 1888 | A.F. Tyler | Machine for smoothing and finishing blind-slats | windowblind machines | |
| 543,475 | Jul. 30, 1895 | H. Fraser | Planer | wood planers | |
| 6,439,961 | Aug. 27, 2002 | S.W. Quick, R.E. Hammond | Machining cell and method for deburring the root of a turbine blade | ||