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公开(公告)号:US3208820A
公开(公告)日:1965-09-28
申请号:US14353361
申请日:1961-10-09
Applicant: HOECHST AG
Inventor: ULRICH SCHWENK , LUDWIG SCHLAFER , GUNTER MAU , MANFRED FORDERREUTHER , FRITZ HUBENETT
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2.Extracting silver salts from aqueous solution by organic solvents 失效
Title translation: 通过有机溶剂从水溶液中提取银盐公开(公告)号:US3214248A
公开(公告)日:1965-10-26
申请号:US12957161
申请日:1961-08-07
Applicant: HOECHST AG
Inventor: ULRICH SCHWENK , GUNTER MAU , LUDWIG SCHLAFER
IPC: C01G5/00
CPC classification number: C01G5/00
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3.Process for preparing 2, 5-dienoic acids and the esters thereof 失效
Title translation: 制备2,5-二烯酸及其酯的方法公开(公告)号:US3412114A
公开(公告)日:1968-11-19
申请号:US38425364
申请日:1964-07-21
Applicant: HOECHST AG
Inventor: HANS FERNHOLZ , LUDWIG SCHLAFER
IPC: C07C51/14
CPC classification number: C07C255/00 , C07C51/14 , C07C57/03
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