申请人 |
UNITED STATES GYPSUM COMPANY;LIU, QINGXIA;SHAKE, MICHAEL, P.;BLACKBURN, DAVID, R.;WILSON, JOHN, W.;RANDALL, BRIAN;LETTKEMAN, DENNIS, M. |
发明人 |
LIU, QINGXIA;SHAKE, MICHAEL, P.;BLACKBURN, DAVID, R.;WILSON, JOHN, W.;RANDALL, BRIAN;LETTKEMAN, DENNIS, M. |