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| Patents for Joseph W. Kosinski | |||||
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| Number | Title | Classification(s) | |||
| 2,990,188 | Tool Holder-Rotary Locking Type | 279/75, 408/239R | |||
| 3,301,082 | Ball Screw Mechanism | 74/424.87 | |||
| 3,592,482 | Hydraulic Chuck | 279/4.06 | |||