申请人 |
MARTIN MARIETTA CORP., BETHESDA, MD., US |
发明人 |
BAILEY, ALEX, EUGENE, COCKEYVILLE, MD 21030, US;WINZER, STEPHEN, RANDOLPH, ELLICOTT CITY, MD 20143, US;SUTHERLAND, AUDREY, ELIZABETH, ELDERSBURG, MD 21784, US;RITTER, ANDREW, PAUL, BALTIMORE, MD 21228, US |