-
公开(公告)号:US2478675A
公开(公告)日:1949-08-09
申请号:US752848
申请日:1948-02-10
Applicant: SHELL DEV
Inventor: TAMELE MIROSLAV W , IRVINE VANAN C , MAHAR JAMES F
-
公开(公告)号:US2454724A
公开(公告)日:1948-11-23
申请号:US47603243
申请日:1943-02-15
Applicant: SHELL DEV
Inventor: TAMELE MIROSLAV W , IRVINE VANAN C , MAHAR JAMES F
-