| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | Patent number: | Patent Date: |
| Patents for G. L. Howard | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 167,527 | Sep. 07, 1875 | G. Hart | Improvement in molds for forming artificial grindstones | grinding wheels | |