-
公开(公告)号：US2820016A
公开(公告)日：1958-01-14
申请号：US44052454
申请日：1954-06-30
Applicant: SHELL DEV
Inventor： RAIFSNIDER PHILIP J , RITA WIELAND
CPC classification number: G01N31/22 , C23F11/02 , Y10S428/923 , Y10S436/904 , Y10T436/173076
Search Results
1
records
(took 0.007 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
