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公开(公告)号：US3507402A
公开(公告)日：1970-04-21
申请号：US3507402D
申请日：1967-11-02
Applicant: FLOYD R BARBEE , ALEXANDER RUIZ
Inventor： BARBEE FLOYD R
CPC classification number: A47G25/0664 , A47F5/13 , A47F7/24
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