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Wilhelm Nickel
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Mulheim, DE
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last 30 patents
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Patent Grant
Making seamless pipes, over 200 mm in diameter
Patent number
4,848,124
Issue date
Jul 18, 1989
Mannesmann AG
Horst Biller
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Guide structure for pierced hollows
Patent number
4,803,861
Issue date
Feb 14, 1989
Mannesmann AG
Rolf Kuemmerling
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Holding and guiding a mandrel rod in rolled stock in and adjacent t...
Patent number
4,638,655
Issue date
Jan 27, 1987
Mannesmann AG
Wilhelm Sebastian
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Device for the delivery and removal of the mandrel rods in skew and...
Patent number
4,592,222
Issue date
Jun 3, 1986
Mannesmann Aktiengesellschaft
Manfred Muller
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...