DE2152466
BAUMGARTNER, RONALD R, FARAGO, LASZLO D., ST. PAUL, MINN., US, SANDERS, JAMES F
Year of Publication 03.12.1981
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Year of Publication 03.12.1981
Patent
DE2152466
BAUMGARTNER, RONALD R, FARAGO, LASZLO D., ST. PAUL, MINN., US, SANDERS, JAMES F
Year of Publication 02.04.1981
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Year of Publication 02.04.1981
Patent