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公开(公告)号：US2988004A
公开(公告)日：1961-06-13
申请号：US64012357
申请日：1957-02-14
Applicant: ELECTROL INC
Inventor： ASHTON BENJAMIN N , EMERSON RAWDING , VON PESSLER HENRY
IPC: F15B1/26
CPC classification number: F15B1/26 , Y10T137/86059
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