
US2249065A US336820A US33682040A US2249065A US 2249065 A US2249065 A US 2249065A US 336820 A US336820 A US 336820A US 33682040 A US33682040 A US 33682040A US 2249065 A US2249065 A US 2249065A Authority US United States Prior art keywords work axis grinding wheel rotation grinding Prior art date 1940-05-23 Legal status (The legal status is an assumption and is not a
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