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| Patents for Joseph W. Kosinski | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,990,188 | Jun. 27, 1961 | J.W. Kosinski, B.R. Better | Tool Holder-Rotary Locking Type | drilling and boring tool holders | |
| 3,301,082 | Jan. 31, 1967 | J.W. Kosinski | Ball Screw Mechanism | metalworking machine bearings | |
| 3,592,482 | Jul. 13, 1971 | J.W. Kosinski, B.R. Better | Hydraulic Chuck | chucks | |