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Hermann Moeltner
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Dusseldorf, DT
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last 30 patents
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Patent Grant
Tube rolling
Patent number
4,020,667
Issue date
May 3, 1977
Firma Friedrich Kocks
Werner Demny
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Patent Grant
Stretch reducing mills
Patent number
3,952,570
Issue date
Apr 27, 1976
Firma Friedrich Kocks
Werner Demny
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...