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| Patents for Otto Hermann | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,058,080 | Nov. 15, 1977 | O. Hermann | English-Metric Dial Assembly | metalworking machine mechanisms | |
| 4,208,930 | Jun. 24, 1980 | O. Hermann | Spindle Control Mechanism | machine tool controls | |