A device includes a substrate having first and second major surfaces and a h ub that defines an axis of rotation for the substrate, and an unvented channel having a plurality of connected compartments. Methods for using devices of t he invention are also disclosed.
申请公布号
CA2530851(A1)
申请公布日期
2005.01.20
申请号
CA20042530851
申请日期
2004.05.18
申请人
3M INNOVATIVE PROPERTIES COMPANY
发明人
GASON, SAMUEL J.;CHONG CONKLIN, BATHSHEBA E.;ZARRAGA, ISIDRO ANGELO E.;BEDINGHAM, WILLIAM;COLEMAN, PATRICK L.;LUDOWISE, PETER D.
