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Inventor

KETTL RALPH

DE8 patents
⚠️ This page may combine multiple inventors who share the name “KETTL RALPH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

EMS CHEMIE AG

5 patents

HOFFMANN BOTHO

1 patent

CAVIEZEL HEINZ

1 patent

EMS PATENT AG

1 patent