Patent information:
| Patent: | Utility 393 |
| Patented: | September 22, 1837 |
| Applied: | |
| Title: | Improvement in the Composition of Matter for Fire-Bricks |
| Description: | Flint composition material for the Elliott flint insulators |
| Category: | Flint |
| Assigned to: | |
Patentee Information:
Class and subclass information:
| Class: | 501 | COMPOSITIONS: CERAMIC |
| Subclass: | 129 | CERAMIC COMPOSITIONS; Refractory; Trivalent metal compound (e.g., iron oxide, chromium oxide, trivalent rare earth oxide, etc.) containing; Aluminum compound (e.g., clay, aluminium oxide, etc.); And silicon compound other than clay; And silica-clay mixtures; |
Known specimens:
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