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公开(公告)号：US2975293A
公开(公告)日：1961-03-14
申请号：US48918455
申请日：1955-02-18
Applicant: DIAMOND POWER SPECIALITY
Inventor： KRUSE JR JOHN R , BURGESS LAURANCE D , STUMPF JOHN A
IPC: G01N21/89
CPC classification number: G01N21/89
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