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公开(公告)号：US3187555A
公开(公告)日：1965-06-08
申请号：US14492561
申请日：1961-10-13
Applicant: STAMICARBON
Inventor： SIESWERDA BAUKE S , JORIS PIERRE M A
IPC: G01N33/22
CPC classification number: G01N33/222
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