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| Patents for Frederick Schultze | |||||
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| Number | Date | Patentee | Title | Type | |
| 44,267 | Sep. 13, 1864 | F. Zuenkeler | Improvement in machines for cutting bungs | bung making machines | |
| 578,777 | Mar. 16, 1897 | F. Schultze | Screw Machine | screw machines | |
| 617,408 | Jan. 10, 1899 | F. Schultze | Metal Turning Machine | screw machines | |