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公开(公告)号：CA508428A
公开(公告)日：1954-12-21
申请号：CA508428D
Applicant: STANDARD OIL CO
Inventor： MUSSELMAN JOHN M
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公开(公告)号：CA502723A
公开(公告)日：1954-05-18
申请号：CA502723D
Applicant: STANDARD OIL CO
Inventor： MUSSELMAN JOHN M
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