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公开(公告)号：US2581692A
公开(公告)日：1952-01-08
申请号：US71304246
申请日：1946-11-29
Applicant: ADMIRAL CORP
Inventor： MORTON EVANS T , GEEVER CHESTER L
IPC: F16B21/07
CPC classification number: F16B21/07 , Y10S411/969
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