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Herbert Klockenhoff
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Menden, DT
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last 30 patents
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Patent Grant
Device for conveying metal sheets for affixation to a windup drum f...
Patent number
4,022,367
Issue date
May 10, 1977
Sundwiger Eisenhutte Maschinenfabrik Grah & Co.
Willi Sporenberg
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...