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Manfred Hien
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Monchengladbach, DE
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last 30 patents
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Patent Grant
Disengageable universal shaft for rolling mill drives
Patent number
5,651,440
Issue date
Jul 29, 1997
Mannesmann Aktiengesellschaft
Manfred Hien
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Two-high cross rolling mill with guide disks
Patent number
5,479,805
Issue date
Jan 2, 1996
Mannesmann Aktiengesellschaft
Paul Koenen
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Mandrel rod holding device
Patent number
4,724,697
Issue date
Feb 16, 1988
Mannesmann AG
Manfred Hien
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...