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1.
公开(公告)号:US2148678A
公开(公告)日:1939-02-28
申请号:US75206434
申请日:1934-11-08
Applicant: STANDARD OIL DEV CO
Inventor: BLAU LUDWIG W , BRYAN ANDREW B
CPC classification number: G04D7/1207 , G01V7/12
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2.Method of geophysical prospecting by the comparison of steady state potentials 失效
Title translation: 通过比较稳态势的地球物理勘探方法公开(公告)号:US2104440A
公开(公告)日:1938-01-04
申请号:US8390236
申请日:1936-06-06
Applicant: STANDARD OIL DEV CO
Inventor: LOUIS STATHAM , BLAU LUDWIG W
IPC: G01V3/06
CPC classification number: G01V3/06
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公开(公告)号:US2081350A
公开(公告)日:1937-05-25
申请号:US65982233
申请日:1933-03-06
Applicant: STANDARD OIL DEV CO
Inventor: BLAU LUDWIG W
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公开(公告)号:US2055477A
公开(公告)日:1936-09-29
申请号:US70479933
申请日:1933-12-30
Applicant: STANDARD OIL DEV CO
Inventor: BLAU LUDWIG W
IPC: G01V1/24
CPC classification number: G01V1/245
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公开(公告)号:US2037306A
公开(公告)日:1936-04-14
申请号:US72963034
申请日:1934-06-08
Applicant: STANDARD OIL DEV CO
Inventor: BLAU LUDWIG W , GEMMER RALPH W
IPC: G01V3/24
CPC classification number: G01V3/24
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公开(公告)号:US1911137A
公开(公告)日:1933-05-23
申请号:US53047231
申请日:1931-04-16
Applicant: STANDARD OIL DEV CO
Inventor: BLAU LUDWIG W
IPC: G01V3/04
CPC classification number: G01V3/04
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公开(公告)号:US2337443A
公开(公告)日:1943-12-21
申请号:US42242541
申请日:1941-12-10
Applicant: STANDARD OIL DEV CO
Inventor: BLAU LUDWIG W
IPC: G01V9/00
CPC classification number: G01V9/007 , Y10S435/808
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公开(公告)号:US2330026A
公开(公告)日:1943-09-21
申请号:US36695040
申请日:1940-11-25
Applicant: STANDARD OIL DEV CO
Inventor: BLAU LUDWIG W
IPC: G01V9/00
CPC classification number: G01V9/007 , Y10S435/808
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9.Use of high frequencies in measuring change in electrical impedance 失效
Title translation: 使用高频测量电阻变化公开(公告)号:US2148679A
公开(公告)日:1939-02-28
申请号:US75951234
申请日:1934-12-28
Applicant: STANDARD OIL DEV CO
Inventor: BLAU LUDWIG W , THOMPSON ROBERT R , MOUNCE WHITMAN D
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10.Method of determining the dips of geological strata with substantially vertical reflections 失效
Title translation: 用基本上垂直的反射来确定地质层下沉的方法公开(公告)号:US2148422A
公开(公告)日:1939-02-28
申请号:US8746136
申请日:1936-06-26
Applicant: STANDARD OIL DEV CO
Inventor: BLAU LUDWIG W
IPC: G01V1/20
CPC classification number: G01V1/20
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