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EP Citations: EP1497052

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Type:Patent literature
Publication No.:US5062290  [X]
 (HOOVER JOHN B [US]);
Type:Patent literature
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 (PECORA GENNARO L [US], et al);
Type:Patent literature
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 (SVENSSON UNO);
Type:Patent literature
Publication No.:US4942757  [X]
 (PECORA GENNARO L [US]);
Type:Patent literature
Publication No.:US2869407  [X]
 (SWANSON EDWIN C);
Type:Patent literature
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 (LEFAVOUR JOHN D [US], et al);
Type:Patent literature
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 (BUSSEREAU MARCEL [FR], et al);
Type:Patent literature
Publication No.:US6276186  [A]
 (FRENKEN EGBERT [DE]);
Type:Patent literature
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 (LINES R);
Type:Patent literature
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 (SCHWAB CHARLES J);
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 (SWANSON EDWIN C);
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 (EARL HOADLEY CYRUS);
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 (PETERSON KENNETH E)