US2903925A
US2903925A US599619A US59961956A US2903925A US 2903925 A US2903925 A US 2903925A US 599619 A US599619 A US 599619A US 59961956 A US59961956 A US 59961956A US 2903925 A US2903925 A US 2903925A Authority US United States Prior art keywords rolls carriage rolling mill roll segmental Prior art date 1955 08 05 Legal status The
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