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公开(公告)号：US3217794A
公开(公告)日：1965-11-16
申请号：US31590763
申请日：1963-10-14
Applicant: SEALOL
Inventor： MEYER WALTER W , TELLER WILLIAM M
IPC: D21F5/02
CPC classification number: D21F5/02 , Y10S165/159
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