Patent information:
| Patent: | Utility 247,100 |
| Patented: | September 13, 1881 |
| Applied: | July 18, 1881 |
| Title: | Process of Forming Screws in Articles of Glass |
| Description: | Threading process inserts hollow blown glass thimble for threads |
| Category: | Thread |
| Assigned to: | Edward C. Sherburne |
Patentee Information:
| OAKMAN, Samuel | Winchester, MA |
Class and subclass information:
| Class: | 65 | GLASS MANUFACTURING |
| Subclass: | 45 | PROCESSES; Fusion bonding of glass to a formed part; With glass part forming from shapeless molten glass; |
Known specimens:
| Number: |  |
Drawings:
Page 1 |