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公开(公告)号：US2799657A
公开(公告)日：1957-07-16
申请号：US45660454
申请日：1954-09-16
Applicant: TEXAS CO
Inventor： COLE EDWARD L , SKEITON WILLIAM E
IPC: C10M151/00
CPC classification number: C10M151/00 , C10M2221/02
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