Patent information:
| Patent: | Utility 157,717 |
| Patented: | December 15, 1874 |
| Applied: | November 23, 1874 |
| Title: | Improvement in Tempering Glass, and Furnaces Therefor |
| Description: | Tempering glass by dropping into oil (see patent 169,783) |
| Category: | Glass |
| Assigned to: |
Patentee Information:
| LA BASTIE, Francois B. A. Royer de | Paris,, France |
Class and subclass information:
| Class: | 65 | GLASS MANUFACTURING |
| Subclass: | 116 | PROCESSES; Glass preform treating; Tempering; Quenching in liquid bath; |
| Class: | 65 | GLASS MANUFACTURING |
| Subclass: | 349 | PRODUCT COOLING MEANS (E.G., TEMPERING); With preceding reheater; |
Known specimens:
| None known |
Drawings:
Page 1 |