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公开(公告)号：US2629457A
公开(公告)日：1953-02-24
申请号：US16868950
申请日：1950-06-17
Applicant: J A ZURN MFG COMPANY
Inventor： BAKER ALBERT A
IPC: E03F5/04
CPC classification number: E03F5/0407 , E03F2005/0413 , E03F2005/0414
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