Patent information:
| Patent: | Utility 1,589,939 |
| Patented: | June 22, 1926 |
| Applied: | April 17, 1922 |
| Title: | Nail Knob Assembly |
| Description: | Machine to manufacture nail-knobs |
| Category: | Knob |
| Assigned to: | Federal Porcelain Co. |
Patentee Information:
| CASE, Francis M. | Cleveland, OH |
Class and subclass information:
| Class: | 470 | |
| Subclass: | 53 | |
| Class: | 221 | ARTICLE DISPENSING |
| Subclass: | 165 | |
| Class: | 221 | ARTICLE DISPENSING |
| Subclass: | 174 | |
| Class: | 470 | |
| Subclass: | 179 | |
| Class: | 470 | |
| Subclass: | 56 |
Known specimens:
| None known |
Drawings:
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