Cartridge for below-surface treatment of molten metals
United States Patent 2550735
Publication Date:
05/01/1951
Assignee:
Julius, Bates S. W.
Other Classes:
75/563, 75/562, 428/600, 428/469, 428/609, 220/89.400, 75/560, 53/486, 75/564, 29/423, 169/26
International Classes:
C21C7/04