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公开(公告)号：US3003494A
公开(公告)日：1961-10-10
申请号：US64953757
申请日：1957-03-29
Applicant: ROSS IRENE F , LAMB GORDON A
Inventor： ROSS IRENE F , LAMB GORDON A
IPC: A47J37/07
CPC classification number: A47J37/07
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