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DE913043C
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Device for doubling sheets
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DE914332C
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Branch pipes and pipes with sockets made of sheet metal
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DE969899C
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Process for the continuous casting of iron and steel
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DE891073C
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Device for the production of pipes from cement mixtures or the like.
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DE966111C
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Device for round bending of sheet metal strips into pipes of large diameter
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DE913844C
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Device for preparing the ends of pipes to be joined together
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DE892428C
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Stacking device for sheets
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DE1005603B
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Drive for rocker or lifting tables of rolling mills
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DE866497C
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Procedure for switching conveyor systems
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DE964578C
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Blank swivel device on roller alleys
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DE906802C
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Device for doubling sheets
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DE956961C
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Process for the simultaneous dephosphorization and desulfurization and for the desiliconization of iron melts
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DE918544C
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Ring used to weld pipes together on the construction site
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DE876694C
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Manufacture of high quality steel by wind refining pig iron
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DE969924C
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Process and converter for the production of steel by the wind-fresh process
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DE868159C
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Process for dephosphorization of slag or ores
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DE868747C
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Process for the production of synthetic pig iron
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DE923741C
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Safety device on transport tongs
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DE887273C
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Measuring device for monitoring the steel production process
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DE900353C
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Method of making steel
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