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公开(公告)号：US2194910A
公开(公告)日：1940-03-26
申请号：US22873638
申请日：1938-09-07
Applicant: AMERICAN CYANAMID CO
Inventor： WESTON PINEO ORRIN
IPC: G01J3/42
CPC classification number: G01J3/42
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公开(公告)号：US2189270A
公开(公告)日：1940-02-06
申请号：US22873738
申请日：1938-09-07
Applicant: AMERICAN CYANAMID CO
Inventor： WESTON PINEO ORRIN
IPC: G01J3/42
CPC classification number: G01J3/42
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