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公开(公告)号：US2872281A
公开(公告)日：1959-02-03
申请号：US41845854
申请日：1954-03-24
Applicant: BETZ LABORATORIES
Inventor： KAHLER HARRY L , GEORGE CHARLES B
IPC: C23F11/18
CPC classification number: C23F11/188
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公开(公告)号：US2900222A
公开(公告)日：1959-08-18
申请号：US41487254
申请日：1954-03-08
Applicant: BETZ LABORATORIES
Inventor： KAHLER HARRY L , TANZOLA WILLIAM A
IPC: C23F11/18
CPC classification number: C23F11/188 , Y10S62/20
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