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公开(公告)号：US2308736A
公开(公告)日：1943-01-19
申请号：US39760441
申请日：1941-06-11
Applicant: GEN ELECTRIC
Inventor： GUNTHER ASCHERMANN , HEDWIG STRUBING
IPC: C09K11/77
CPC classification number: C09K11/7721
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