Patent information:
| Patent: | Utility 1,327,782 |
| Patented: | January 13, 1920 |
| Applied: | August 20, 1917 |
| Title: | Process of Obtaining Combined Potassium from Minerals |
| Description: | Process of extracting potassium to be used in glass manufacture (see patent 1,312,053; 1,327,781) |
| Category: | Glass |
| Assigned to: | |
Patentee Information:
Class and subclass information:
| Class: | 423 | CHEMISTRY OF INORGANIC COMPOUNDS |
| Subclass: | 189 | |
| Class: | 423 | CHEMISTRY OF INORGANIC COMPOUNDS |
| Subclass: | 421 | |
Known specimens:
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