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| Patents for Karl Studinka | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,418,987 | Jun. 06, 1922 | K. Studinka | Tool Holder | lathe tool holders and tool posts | |
| 1,509,792 | Sep. 23, 1924 | K. Studinka | Tool Holder | lathe tool holders and tool posts | |