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Johann H. Rohde
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Ratingen, DE
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last 30 patents
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Patent Grant
Apparatus for collecting and ordered bundling of long rolling stock
Patent number
5,413,455
Issue date
May 9, 1995
Mannesmann Aktiengesellschaft
Johann-Heinrich Rohde
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method of longitudinal rolling of seamless pipe
Patent number
5,357,773
Issue date
Oct 25, 1994
Mannesmann Aktiengesellschaft
Johann H. Rohde
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Double roller crossrolling mill for piercing and stretching of soli...
Patent number
4,976,127
Issue date
Dec 11, 1990
Mannesmann Aktiengesellschaft
Johann H. Rohde
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...