Patent information:
| Patent: | Utility 306,146 |
| Patented: | October 7, 1884 |
| Applied: | May 13, 1884 |
| Title: | Press for Molding Glass Insulators |
| Description: | Press for making threads with removable thread forming mandrel |
| Category: | Press |
| Assigned to: |
Patentee Information:
| GRAY, Lawrence B. | Boston, MA |
Class and subclass information:
| Class: | 65 | GLASS MANUFACTURING |
| Subclass: | 362 | PLUNGER; |
Known specimens:
| Number: |  |
Drawings:
Page 1 |