| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for Gertrude H. Anderson | |||||
      | |||||
| Picture | Number | Date | Patentee | Title | |
 | 435,283 | Aug. 26, 1890 | C.L. Coffin | Method of and Apparatus for Welding by Electricity | |
 | 441,603 | Nov. 25, 1890 | S. Tideman | Die and Die Stock | |
 | 461,587 | Oct. 20, 1891 | C.H. Norton | Stand for Grinding and Polishing Wheels | |