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1.发明授权
公开(公告)号：US3279288A
公开(公告)日：1966-10-18
申请号：US38574364
申请日：1964-07-28
Applicant: LELIO MANNAIONI
Inventor： LELIO MANNAIONI
IPC: B23Q35/18
CPC classification number: B23Q35/18 , B23Q2735/082 , Y10T82/147 , Y10T409/302128
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