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公开(公告)号:US1920766A
公开(公告)日:1933-08-01
申请号:US47979630
申请日:1930-09-04
Applicant: SHELL DEV
Inventor: LUDWIG ROSENSTEIN , HUND WALTER J
IPC: C10L1/24
CPC classification number: C10L1/24
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公开(公告)号:US2231423A
公开(公告)日:1941-02-11
申请号:US30766039
申请日:1939-12-05
Applicant: SHELL DEV
Inventor: HORSLEY FRANZ A , LUDWIG ROSENSTEIN
IPC: A01N59/02
CPC classification number: A01N59/02 , Y02A50/358
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公开(公告)号:US2038316A
公开(公告)日:1936-04-21
申请号:US3853535
申请日:1935-08-30
Applicant: SHELL DEV
Inventor: LUDWIG ROSENSTEIN
IPC: C02F5/08
CPC classification number: C02F5/086
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公开(公告)号:US1974725A
公开(公告)日:1934-09-25
申请号:US52475431
申请日:1931-03-23
Applicant: SHELL DEV
Inventor: LUDWIG ROSENSTEIN
IPC: C10G21/20
CPC classification number: C10G21/20
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公开(公告)号:US1948968A
公开(公告)日:1934-02-27
申请号:US55599831
申请日:1931-08-08
Applicant: SHELL DEV
Inventor: KRAMER GUSTAV A , LUDWIG ROSENSTEIN
IPC: C01B21/02
CPC classification number: C01B21/02
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27.
公开(公告)号:US1930664A
公开(公告)日:1933-10-17
申请号:US56130531
申请日:1931-09-04
Applicant: SHELL DEV
Inventor: LUDWIG ROSENSTEIN
IPC: C01B7/03
CPC classification number: C01B7/03
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公开(公告)号:US1854525A
公开(公告)日:1932-04-19
申请号:US40651329
申请日:1929-11-11
Applicant: SHELL DEV
Inventor: LUDWIG ROSENSTEIN
IPC: C07C329/00
CPC classification number: C07C329/00
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