US2564217A - Abrasive cutoff wheel - Google Patents
US2564217A US57556A US5755648A US2564217A US 2564217 A US2564217 A US 2564217A US 57556 A US57556 A US 57556A US 5755648 A US5755648 A US 5755648A US 2564217 A US2564217 A US 2564217A Authority US United States Prior art keywords wheel organic rubber abrasive patterned Prior art date 1948-10-30 Legal status (The legal status is an assumption …
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