-
1.Method of production of pyrethrin concentrate from whole pyrethrum flowers 失效
Title translation: 从除虫菊全花中生产除虫菊素浓缩物的方法公开(公告)号:US2587478A
公开(公告)日:1952-02-26
申请号:US76581247
申请日:1947-08-02
Applicant: STANDARD OIL DEV CO
Inventor: ALEXIS JERNAKOFF MICHAEL , BATT GEORGE H , SANKOWSKY NICHOLAS A
CPC classification number: A01N65/00
-
公开(公告)号:US2534008A
公开(公告)日:1950-12-12
申请号:US76010647
申请日:1947-07-10
Applicant: STANDARD OIL DEV CO
Inventor: FIERO GEORGE W , SEELAND HOWARD F , BATT GEORGE H
-