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公开(公告)号:US2036166A
公开(公告)日:1936-03-31
申请号:US57453931
申请日:1931-11-12
Applicant: STANDARD OIL DEV CO
Inventor: WELLS ALFRED A
IPC: C10G25/11
CPC classification number: C10G25/11
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公开(公告)号:US1672849A
公开(公告)日:1928-06-05
申请号:US69713524
申请日:1924-03-05
Applicant: STANDARD OIL DEV CO
Inventor: LEWIS WARREN K , WELLS ALFRED A
IPC: C10G7/06
CPC classification number: C10G7/06
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公开(公告)号:US2106964A
公开(公告)日:1938-02-01
申请号:US73056734
申请日:1934-06-14
Applicant: STANDARD OIL DEV CO
Inventor: WELLS ALFRED A
CPC classification number: B04B11/08 , B01D11/048 , B04B1/00 , Y10S494/901
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公开(公告)号:US2079782A
公开(公告)日:1937-05-11
申请号:US71754134
申请日:1934-03-27
Applicant: STANDARD OIL DEV CO
Inventor: WELLS ALFRED A
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公开(公告)号:US2010423A
公开(公告)日:1935-08-06
申请号:US63136932
申请日:1932-09-01
Applicant: STANDARD OIL DEV CO
Inventor: WELLS ALFRED A
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公开(公告)号:US2341405A
公开(公告)日:1944-02-08
申请号:US34203140
申请日:1940-06-24
Applicant: STANDARD OIL DEV CO
Inventor: WELLS ALFRED A
CPC classification number: C10G11/00
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7.Operation of a centrifuge for separating the petroleum oil from sulphuric acid 失效
Title translation: 操作离心机将石油与硫酸分离公开(公告)号:US2129751A
公开(公告)日:1938-09-13
申请号:US72750434
申请日:1934-05-25
Applicant: STANDARD OIL DEV CO
Inventor: WELLS ALFRED A , EDWARDS DAVID F
IPC: B04B1/08
CPC classification number: B04B1/08 , Y10S494/901
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公开(公告)号:US2131205A
公开(公告)日:1938-09-27
申请号:US1476035
申请日:1935-04-05
Applicant: STANDARD OIL DEV CO
Inventor: WELLS ALFRED A , COLLINS JOHN O
IPC: C10C3/00
CPC classification number: C10C3/00
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公开(公告)号:US2111920A
公开(公告)日:1938-03-22
申请号:US5701435
申请日:1935-12-31
Applicant: STANDARD OIL DEV CO
Inventor: WELLS ALFRED A
IPC: C01B17/92
CPC classification number: C01B17/92
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公开(公告)号:US1904183A
公开(公告)日:1933-04-18
申请号:US40896629
申请日:1929-11-22
Applicant: STANDARD OIL DEV CO
Inventor: WELLS ALFRED A
IPC: C10G25/06
CPC classification number: C10G25/06
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