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公开(公告)号:US2875342A
公开(公告)日:1959-02-24
申请号:US41167854
申请日:1954-02-23
Applicant: SHELL DEV
Inventor: BRASSINGTON SAMUEL M , SMITH VIGO N
公开(公告)号:US2875342A
公开(公告)日:1959-02-24
申请号:US41167854
申请日:1954-02-23
Applicant: SHELL DEV
Inventor: BRASSINGTON SAMUEL M , SMITH VIGO N