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公开(公告)号：US3344658A
公开(公告)日：1967-10-03
申请号：US39856164
申请日：1964-09-23
Applicant: TAYLOR INSTRUMENT CO
Inventor： HEISIG CHARLES G , MITCHELL RICHARD L
IPC: G01N29/02
CPC classification number: G01N29/02
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