| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for Pratt & Weir Chuck Co. | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 549,837 | Nov. 12, 1895 | D. Weir | Drill-chuck | drill press chucks | |
| 553,531 | Jan. 28, 1896 | G.S. Long | Drill-chuck | drill press chucks | |
| CA-51,626 | Mar. 11, 1896 | D. Weir | Drill chuck | drill press chucks | |
| CA-52,043 | Apr. 22, 1896 | D. Weir | Drill chuck | drill press chucks | |
| GB-189,607,812 | May 16, 1896 | D. Weir | Improvements in drill-chucks | drill press chucks | |
| 1,022,166 | Apr. 02, 1912 | D. Weir | Chuck | drill press chucks | |
| 1,225,089 | May 08, 1917 | D. Weir | Chuck | drill press chucks | |