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1.发明授权
公开(公告)号：US2434173A
公开(公告)日：1948-01-06
申请号：US43448042
申请日：1942-03-13
Applicant: AMERICAN CYANAMID CO
Inventor： MITCHILL MACKENZIE NEIL , EMERSON NESTLER MAX
IPC: D06P1/10
CPC classification number: D06P1/10 , Y10S534/01
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