| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for Phineas C. Dummer | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 4,901X | Oct. 16, 1827 | P.C. Dummer | Mode of pressing glass with a core | glassmaker | |
| 4,902X | Oct. 16, 1827 | G. Dummer, P.C. Dummer, J. Maxwell | Glass formed by a combination of moulds | glassmaker | |