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公开(公告)号:US2202990A
公开(公告)日:1940-06-04
申请号:US12995837
申请日:1937-03-09
Applicant: DU PONT FILM MFG CORP
Inventor: MIDDLETON EDMUND B , DAWSON GEORGE A
IPC: C09B23/04
CPC classification number: C09B23/04
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公开(公告)号:US2200924A
公开(公告)日:1940-05-14
申请号:US21570338
申请日:1938-06-24
Applicant: DU PONT FILM MFG CORP
Inventor: JENNINGS ANDREW B , MIDDLETON EDMUND B
IPC: G03C7/384
CPC classification number: G03C7/384
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公开(公告)号:US2182815A
公开(公告)日:1939-12-12
申请号:US24211238
申请日:1938-11-23
Applicant: DU PONT FILM MFG CORP
Inventor: MIDDLETON EDMUND B , JENNINGS ANDREW B
IPC: G03C7/36
CPC classification number: G03C7/36
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14.Photographic sensitizing dyes and compositions containing the same 失效
Title translation: 摄影增感染料及含有它们的组合物公开(公告)号:US2278461A
公开(公告)日:1942-04-07
申请号:US25045339
申请日:1939-01-11
Applicant: DU PONT FILM MFG CORP
Inventor: MIDDLETON EDMUND B
IPC: C07D417/04 , C09B23/02 , C09B23/12 , G03C1/12
CPC classification number: C07D417/04 , C09B23/02 , C09B23/12 , G03C1/12
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公开(公告)号:US2202992A
公开(公告)日:1940-06-04
申请号:US17447237
申请日:1937-11-13
Applicant: DU PONT FILM MFG CORP
Inventor: MIDDLETON EDMUND B , DAWSON GEORGE A
IPC: G03C1/16
CPC classification number: G03C1/16
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公开(公告)号:US2184303A
公开(公告)日:1939-12-26
申请号:US21570238
申请日:1938-06-24
Applicant: DU PONT FILM MFG CORP
Inventor: JENNINGS ANDREW B , MIDDLETON EDMUND B
IPC: G03C7/36
CPC classification number: G03C7/362
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公开(公告)号:US2133937A
公开(公告)日:1938-10-18
申请号:US12589437
申请日:1937-02-15
Applicant: DU PONT FILM MFG CORP
Inventor: MIDDLETON EDMUND B , JENNINGS ANDREW B
IPC: G03C7/36
CPC classification number: G03C7/36
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