Patent search ap:("STANDARD OIL DEV CO") AND inv:"LAFFERTY ROBERT H" Page 1

1.

发明授权
Vapor liquid solvent extraction process 失效
Title translation: 蒸气溶剂萃取工艺

公开(公告)号：US2520006A

公开(公告)日：1950-08-22

申请号：US55826044

申请日：1944-10-11

Applicant: STANDARD OIL DEV CO

Inventor： HIBSHMAN HENRY J , LAFFERTY ROBERT H

IPC: C10G7/08 , C10G21/16

CPC classification number: C10G21/16 , C10G7/08

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