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公开(公告)号：US2243353A
公开(公告)日：1941-05-27
申请号：US22915038
申请日：1938-09-09
Applicant: P A GEIER CO
Inventor： MARTINET EUGENE F , SCHOOR HAROLD VAN
IPC: A47L9/14
CPC classification number: A47L9/14
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