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公开(公告)号：US3266718A
公开(公告)日：1966-08-16
申请号：US36021464
申请日：1964-04-16
Applicant: BECKMAN INSTRUMENTS INC
Inventor： STAHL LAWRENCE E , OATES WILLIAM M , ZELLER ALFRED L
IPC: B04B5/04
CPC classification number: B04B5/0421
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