-
公开(公告)号:US2324955A
公开(公告)日:1943-07-20
申请号:US38476641
申请日:1941-03-22
Applicant: STANDARD OIL DEV CO
Inventor: RUPP WALTER H , RITCHIE SMITH MILTON
公开(公告)号:US2324955A
公开(公告)日:1943-07-20
申请号:US38476641
申请日:1941-03-22
Applicant: STANDARD OIL DEV CO
Inventor: RUPP WALTER H , RITCHIE SMITH MILTON