-
公开(公告)号:US2992249A
公开(公告)日:1961-07-11
申请号:US6094248
申请日:1948-11-19
申请人: BOYD GEORGE E , RUSSELL EDWIN R , TAYLOR MODDIE D
发明人: BOYD GEORGE E , RUSSELL EDWIN R , TAYLOR MODDIE D
CPC分类号: G21C19/46 , C01G56/002 , C22B3/0024 , C22B3/24 , C22B3/42 , Y02P10/234 , Y02W30/883