| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for Ballou Mfg. Co. | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 293,930 | Feb. 19, 1884 | C.V. Woerd | Machine for Threading Sectional Leading Screws | metal threading machines | |
| 301,165 | Jul. 01, 1884 | G.F. Ballou, W.A. Rogers | Apparatus for Cutting Screws | metal threading machines | |