United States Patent RE27582

Publication Date:
02/06/1973
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Primary Class:
508/228
Other Classes:
564/507, 44/305, 544/171, 508/247, 44/385, 508/454, 44/334, 44/331, 544/87, 548/546, 548/520, 44/457, 252/407, 250/396R, 560/196, 44/458
International Classes:
C10M159/20; C10M159/00