-
公开(公告)号:CA547889A
公开(公告)日:1957-10-22
申请号:CA547889D
Applicant: SHELL DEV
Inventor: BELL EDWARD R , THORPE ROY E
-
公开(公告)号:CA547656A
公开(公告)日:1957-10-15
申请号:CA547656D
Applicant: SHELL DEV
Inventor: THORPE ROY E , HARMAN DENHAM , BELL EDWARD R
-
公开(公告)号:CA546699A
公开(公告)日:1957-09-24
申请号:CA546699D
Applicant: SHELL DEV
Inventor: THORPE ROY E , BELL EDWARD R
-
公开(公告)号:CA533557A
公开(公告)日:1956-11-20
申请号:CA533557D
Applicant: SHELL DEV
Inventor: MORRIS RUPERT C , WINKLE JOHN L VAN , BELL EDWARD R
-
-
-