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公开(公告)号：CA423559A
公开(公告)日：1944-10-31
申请号：CA423559D
Applicant: SHELL DEV
Inventor： BENT FRANKLIN A , RYAN CLYDE R
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公开(公告)号：CA423558A
公开(公告)日：1944-10-31
申请号：CA423558D
Applicant: SHELL DEV
Inventor： BENT FRANKLIN A , RYAN CLYDE R
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