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Hans-Werner Kastner
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Vohringen, DE
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last 30 patents
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Patent Grant
Finned tube with indented groove base and method of forming same
Patent number
4,796,693
Issue date
Jan 10, 1989
Wieland-Werke AG
Hans-Werner Kastner
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Patent Grant
Y and T-finned tubes and methods and apparatus for their making
Patent number
4,179,911
Issue date
Dec 25, 1979
Wieland-Werke Aktiengesellschaft
Manfred Saier
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Y and T-finned tubes and methods and apparatus for their making
Patent number
4,168,618
Issue date
Sep 25, 1979
Wieland-Werke Aktiengesellschaft
Manfred Saier
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...