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| Patents Granted on 1961-12-19 | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,013,457 | Dec. 19, 1961 | G.E. Ruehrwein, R.E. Le Blond | Crankshaft Lathe and Method of Operation | crankshaft lathes | |
| 3,013,473 | Dec. 19, 1961 | S.C. Straus | Swivel Head for Milling Machines | milling machines | |
| 3,013,823 | Dec. 19, 1961 | G.H. Schulz | Seal | shaft seals | |
| 3,013,847 | Dec. 19, 1961 | E.C. Gits | Lubricating Device | oil cups | |