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公开(公告)号：US3366771A
公开(公告)日：1968-01-30
申请号：US37030564
申请日：1964-05-26
Applicant: INT STANDARD ELECTRIC CORP
Inventor： MEIRION JACKSON THOMAS , CAROL STERN RONALD
IPC: B23H7/02
CPC classification number: B23H7/02
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