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公开(公告)号：US2212326A
公开(公告)日：1940-08-20
申请号：US21891738
申请日：1938-07-13
Applicant: PIKEN IRVING J
Inventor： PIKEN IRVING J
IPC: A47H23/01
CPC classification number: A47H23/01 , A47H2201/01 , Y10S160/06 , Y10S160/16 , Y10S206/818 , Y10S211/01 , Y10T24/32
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