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公开(公告)号：US2396469A
公开(公告)日：1946-03-12
申请号：US52675744
申请日：1944-03-16
Applicant: AMERICAN INSTR COMPANY
Inventor： MEIGS DOUGLAS P
CPC classification number: F16J15/0881 , B01J3/03 , F16J13/12
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