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公开(公告)号：US2991663A
公开(公告)日：1961-07-11
申请号：US77665258
申请日：1958-11-26
Applicant: MCHUGH JOHN B
Inventor： MCHUGH JOHN B
CPC classification number: B44B3/061 , B23B39/04 , B23Q1/626 , Y10T74/18056 , Y10T74/19023 , Y10T74/19107 , Y10T74/1967 , Y10T74/20201 , Y10T74/20354 , Y10T409/300896
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公开(公告)号：US2981123A
公开(公告)日：1961-04-25
申请号：US77665058
申请日：1958-11-26
Applicant: MCHUGH JOHN B
Inventor： MCHUGH JOHN B
IPC: G05D3/12
CPC classification number: G05D3/12 , Y10T74/18328 , Y10T74/1907 , Y10T74/20492 , Y10T409/300896
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