申请人 |
ALUMINUM COMPANY OF AMERICA, PITTSBURGH, PA., US |
发明人 |
SAFORO, EMMANUEL K., PENNSYLVANIA, US;LIU, PAUL K.T., PITTSBURGH 15238 PENNSYLVANIA, US;BERGSTROM, ROBIN K., NATRONA HEIGHTS 15065 PENNSYLVANIA, US;GATTY, DAVID G., TARENTUM 15084 PENNSYLVANIA, US |