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公开(公告)号：US2507927A
公开(公告)日：1950-05-16
申请号：US4364848
申请日：1948-08-11
Applicant: LEIF OLSEN-TANK
Inventor： LEIF OLSEN-TANK
IPC: B41L3/02
CPC classification number: B41L3/02
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