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公开(公告)号：US2196988A
公开(公告)日：1940-04-16
申请号：US26497339
申请日：1939-03-30
Applicant: DOW CHEMICAL CO
Inventor： HEATH SHELDON B , SCOLES WAYNE L
IPC: A01N25/08
CPC classification number: A01N25/08
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公开(公告)号：US2299917A
公开(公告)日：1942-10-27
申请号：US38650041
申请日：1941-04-02
Applicant: DOW CHEMICAL CO
Inventor： MINGER FOREST R , SCOLES WAYNE L
IPC: A01N59/02
CPC classification number: A01N59/02
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