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DE2726491

DE2726491

by ACKERMANN, OTTO, MEYER, GUENTHER, LEUCK, HANS, SCHMELING, GERHARD, 5050 BRUEHL
Year of Publication 12.02.1981

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Patent

DE2726491

DE2726491

by ACKERMANN, OTTO, MEYER, GUENTHER, LEUCK, HANS, SCHMELING, GERHARD, 5050 BRUEHL
Year of Publication 29.05.1980

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Patent