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公开(公告)号：US3365643A
公开(公告)日：1968-01-23
申请号：US40304864
申请日：1964-10-12
Applicant: AMETEK INC
Inventor： ARCE HENRY L , STONER DONALD L , WHITENER JACK L
IPC: G05D1/02
CPC classification number: G05D1/0206
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