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公开(公告)号:CA273544A
公开(公告)日:1927-08-30
申请号:CA273544D
Applicant: STANDARD OIL CO
Inventor: ATWELL HAROLD V
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公开(公告)号:CA273543A
公开(公告)日:1927-08-30
申请号:CA273543D
Applicant: STANDARD OIL CO
Inventor: ATWELL HAROLD V
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公开(公告)号:CA375824A
公开(公告)日:1938-08-16
申请号:CA375824D
Applicant: STANDARD OIL CO
Inventor: ATWELL HAROLD V
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公开(公告)号:CA346725A
公开(公告)日:1934-12-11
申请号:CA346725D
Applicant: STANDARD OIL CO
Inventor: ATWELL HAROLD V
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公开(公告)号:CA339404A
公开(公告)日:1934-02-13
申请号:CA339404D
Applicant: STANDARD OIL CO
Inventor: ATWELL HAROLD V
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公开(公告)号:CA307009A
公开(公告)日:1930-12-23
申请号:CA307009D
Applicant: STANDARD OIL CO
Inventor: ATWELL HAROLD V
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公开(公告)号:CA265217A
公开(公告)日:1926-10-19
申请号:CA265217D
Applicant: STANDARD OIL CO
Inventor: ATWELL HAROLD V
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公开(公告)号:CA258033A
公开(公告)日:1926-02-09
申请号:CA258033D
Applicant: STANDARD OIL CO
Inventor: ATWELL HAROLD V
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公开(公告)号:US2081130A
公开(公告)日:1937-05-25
申请号:US64953432
申请日:1932-12-30
Applicant: STANDARD OIL CO
Inventor: ATWELL HAROLD V
IPC: C10K1/04
CPC classification number: C10K1/043
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公开(公告)号:US1907706A
公开(公告)日:1933-05-09
申请号:US42111530
申请日:1930-01-16
Applicant: STANDARD OIL CO
Inventor: ATWELL HAROLD V
IPC: F16N39/00
CPC classification number: F16N39/005
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