DE2224539
SCHERM, ARTHUR., 6380 BAD HOMBURG, PETERI, DEZSOE.DR., 6000 FRANKFURT
Year of Publication 21.11.1974
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Year of Publication 21.11.1974
Patent
DE2224539
SCHERM, ARTHUR., 6380 BAD HOMBURG, PETERI, DEZSOE.DR., 6000 FRANKFURT
Year of Publication 25.04.1974
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Year of Publication 25.04.1974
Patent