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公开(公告)号：US2817352A
公开(公告)日：1957-12-24
申请号：US49752055
申请日：1955-03-29
Applicant: ELECTROL INC
Inventor： BARTEN RAYMOND J , SWARTHOUT HERBERT J
CPC classification number: G05D16/10 , F16K17/00 , Y10T137/2564 , Y10T137/2647
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