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公开(公告)号:US2074043A
公开(公告)日:1937-03-16
申请号:US62613232
申请日:1932-07-29
Applicant: STANDARD OIL DEV CO
Inventor: BLAU LUDWIG W , LOUIS STATHAM
IPC: G01V1/18
CPC classification number: G01V1/181
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公开(公告)号:US2055619A
公开(公告)日:1936-09-29
申请号:US73194634
申请日:1934-06-22
Applicant: STANDARD OIL DEV CO
Inventor: BLAU LUDWIG W , WATT JAMES S
IPC: H03H11/12
CPC classification number: H03H11/12
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公开(公告)号:US2018756A
公开(公告)日:1935-10-29
申请号:US62926232
申请日:1932-08-18
Applicant: STANDARD OIL DEV CO
Inventor: BLAU LUDWIG W , SLOTNICK MORRIS M , LOUIS STATHAM
IPC: G01V1/18
CPC classification number: G01V1/181
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公开(公告)号:CA371842A
公开(公告)日:1938-02-08
申请号:CA371842D
Applicant: STANDARD OIL DEV CO
Inventor: BLAU LUDWIG W
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公开(公告)号:CA397854A
公开(公告)日:1941-07-08
申请号:CA397854D
Applicant: STANDARD OIL DEV CO
Inventor: BLAU LUDWIG W , STATHAM LOUIS
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公开(公告)号:CA378978A
公开(公告)日:1939-01-17
申请号:CA378978D
Applicant: STANDARD OIL DEV CO
Inventor: BLAU LUDWIG W
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公开(公告)号:CA371843A
公开(公告)日:1938-02-08
申请号:CA371843D
Applicant: STANDARD OIL DEV CO
Inventor: BLAU LUDWIG W , STATHAM LOUIS
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公开(公告)号:CA371844A
公开(公告)日:1938-02-08
申请号:CA371844D
Applicant: STANDARD OIL DEV CO
Inventor: THOMPSON ROBERT R , BLAU LUDWIG W , MOUNCE WHITMAN D
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公开(公告)号:CA341532A
公开(公告)日:1934-05-08
申请号:CA341532D
Applicant: STANDARD OIL DEV CO
Inventor: BLAU LUDWIG W
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公开(公告)号:CA434622A
公开(公告)日:1946-05-07
申请号:CA434622D
Applicant: STANDARD OIL DEV CO
Inventor: CANNON GEORGE E , BLAU LUDWIG W
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