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公开(公告)号：US3152368A
公开(公告)日：1964-10-13
申请号：US16727462
申请日：1962-01-19
Applicant: STUART WHITFIELD M P
Inventor： STUART WHITFIELD M P
IPC: E06B3/46
CPC classification number: E05F11/53 , E05D15/08 , E05Y2201/722 , E05Y2900/148 , E06B3/4609 , Y10T403/24 , Y10T403/32426
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2.发明授权Current supply including high frequency component for spark erosion machining apparatus 失效电流供应包括用于火花冲蚀加工设备的高频部件
公开(公告)号：US3161752A
公开(公告)日：1964-12-15
申请号：US16653262
申请日：1962-01-16
Applicant: STUART WHITFIELD M P
Inventor： STUART WHITFIELD M P
IPC: B23H1/02
CPC classification number: B23H1/022
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