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公开(公告)号：US2630950A
公开(公告)日：1953-03-10
申请号：US22765151
申请日：1951-05-22
Applicant: KUPCHIK GEORGE J
Inventor： KUPCHIK GEORGE J
CPC classification number: A47G25/14 , A47G25/005 , A47L23/20
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