申请人 |
UNITED STATES GYPSUM COMPANY;SHAKE, MICHAEL P.;LIU, QINGXIA;IMMORDINO, SALVATORE C.;ENGBRECHT, DICK C.;ROELFS, DONALD L.;NELSON, CHRISTOPHER R.;ROHRBAUGH, WAYNE J.;FEDORIS, JOSEPH J. |
发明人 |
SHAKE, MICHAEL P.;LIU, QINGXIA;IMMORDINO, SALVATORE C.;ENGBRECHT, DICK C.;ROELFS, DONALD L.;NELSON, CHRISTOPHER R.;ROHRBAUGH, WAYNE J.;FEDORIS, JOSEPH J. |