Patent information:
| Patent: | Utility 2,257,675 |
| Patented: | September 30, 1941 |
| Applied: | January 23, 1940 |
| Title: | Plunger Screw-Out Chuck |
| Description: | Insulator threading mandrel removal machine |
| Category: | Press; OI |
| Assigned to: | Owens-Illinois Glass Co. |
Patentee Information:
Class and subclass information:
| Class: | 279 | CHUCKS OR SOCKETS |
| Subclass: | 24 | |
Known specimens:
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Drawings:
Page 1 |
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