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公开(公告)号：US2430834A
公开(公告)日：1947-11-11
申请号：US53830644
申请日：1944-06-01
Applicant: AMERICAN CYANAMID CO
Inventor： STEARNS JR EDWIN I , BUC GEORGE L
IPC: G01J3/42
CPC classification number: G01J3/42
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