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Walter Hecken
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Windhagen, DE
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Patents Grants
last 30 patents
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Patent Grant
Device for introducing a coating into pipes
Patent number
6,672,857
Issue date
Jan 6, 2004
Walter Hecken
B28 - WORKING CEMENT, CLAY, OR STONE
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Patent Grant
Lining panel fastening
Patent number
6,561,726
Issue date
May 13, 2003
Walter Hecken
F27 - FURNACES KILNS OVENS RETORTS
Patents Applications
last 30 patents
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Patent Application
Method and device for introducing a coating into pipes
Publication number
20020007783
Publication date
Jan 24, 2002
Walter Hecken
B28 - WORKING CEMENT, CLAY, OR STONE