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| Patents Granted on 1969-01-07 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,420,009 | Jan. 07, 1969 | J. Decker | Work Centering Chuck | cylindrical grinders | |
| 3,420,585 | Jan. 07, 1969 | H. Jensen | Oil Hole Cover | oil cups | |
| 3,420,590 | Jan. 07, 1969 | G.A. Bilocq | Dustproof bearing for idler roller | ||