US2341910A
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Method of and machine for preblooming ingots
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US1870209A
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Method of reducing and elongating tubular blanks
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US1634352A
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Swaging mill roll
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US1465118A
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Means for regulating water circulation in water-tube boilers
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US1279672A
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Sheet-cleaning machine.
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US1280683A
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Manufacture of seamless tubes.
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US1155711A
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Machine for cleaning and polishing tin sheets.
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US1139957A
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Manufacture of seamless tubes.
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US1067805A
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Feed mechanism.
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US1023458A
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Pickling sheets, &c.
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US1056326A
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Manufacture of seamless tubes.
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US999757A
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Piercing-mill and the like.
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CA81997A
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Tubing manufacture
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US701020A
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Coupling for pipes, shafts, &c.
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US701019A
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Coupling for pipes, &c.
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US701018A
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Shaft-coupling, &c.
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US701017A
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Shaft-coupling.
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US693119A
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Drawing tubes.
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US671991A
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Feed-table.
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US667687A
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Method of manufacturing seamless tubes.
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