| Patents for William Alfred Pearn |
Patents 1 -
10
of 21
      |
| Picture | Number | Date | Patentee | Title |
| | GB-189,120,498 | Nov. 01, 1891 | W.A. Pearn, F. Pearn | Machine for facing, turning, and boring |
 | 504,742 | Sep. 12, 1893 | F. Pearn, W.A. Pearn | Machine for Boring Cylinders and Turning the Flanges Thereof |
 | GB-189,408,120 | Mar. 09, 1895 | W.A. Pearn | Improvements in machines or tools for drilling, tapping, and like purposes |
 | GB-189,625,037 | Oct. 16, 1897 | W.A. Pearn, F. Pearn, E.G. Wrigley | Improvements in tools or machines for facing, turning, boring and otherwise cutting flanges on castings and for operating upon other articles |
 | GB-190,511,870 | Mar. 01, 1906 | W.A. Pearn, F. Pearn | Improvements in connection with machine tools for milling, facing, and cutting metals |
 | GB-190,714,922 | May 21, 1908 | W.A. Pearn, F. Pearn | Improvements in machines for milling, facing, and other metal cutting operations |
 | 941,269 | Nov. 23, 1909 | W.A. Pearn, F. Pearn | Machine for milling, facing, and other metal-cutting operations |
 | GB-191,219,159 | Apr. 17, 1913 | W.A. Pearn, F. Pearn | Improvements in boring, facing, and like machines |
 | GB-191,402,895 | Oct. 01, 1914 | W.A. Pearn | Improvements in boring, facing, milling and like machine tools |
 | GB-191,413,815 | Jan. 28, 1915 | W.A. Pearn | Improvements relating to boring, facing and like machines |
