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Wolfgang Roloff
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Monchengladbach, DE
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last 30 patents
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Patent Grant
Method of straightening sectional steel while simultaneously minimi...
Patent number
6,315,845
Issue date
Nov 13, 2001
SMS Schloemann-Siemag Aktiengesellschaft
Georg Hartung
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method of cooling sectional girders
Patent number
6,059,903
Issue date
May 9, 2000
SMS Schloemann-Siemag Aktiengesellschaft
Wolfgang Roloff
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method and apparatus for connecting billets
Patent number
5,992,001
Issue date
Nov 30, 1999
SMS Schloemann-Siemag AG
Wolfgang Roloff
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Ferritic coiling of wire or bar steel
Patent number
5,902,422
Issue date
May 11, 1999
SMS Schloemann-Siemag Aktiengesellschaft
Meinert Meyer
C21 - METALLURGY OF IRON