-
公开(公告)号:CA368923A
公开(公告)日:1937-09-28
申请号:CA368923D
Applicant: SHELL DEV
Inventor: ROSENSTEIN LUDWIG , HUND WALTER J
-
-
-
-
公开(公告)号:CA393392A
公开(公告)日:1940-12-24
申请号:CA393392D
Applicant: SHELL DEV
Inventor: HORSLEY FRANZ A , ROSENSTEIN LUDWIG
-
公开(公告)号:CA335454A
公开(公告)日:1933-09-05
申请号:CA335454D
Applicant: SHELL DEV
Inventor: ROSENSTEIN LUDWIG , KRAMER GUSTAV A
-
公开(公告)号:CA326215A
公开(公告)日:1932-09-20
申请号:CA326215D
Applicant: SHELL DEV
Inventor: KRAMER GUSTAV A , ROSENSTEIN LUDWIG
-
-
-
-
-
-
-