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公开(公告)号：US3452790A
公开(公告)日：1969-07-01
申请号：US3452790D
申请日：1967-05-01
Applicant: FMC CORP
Inventor： VANDERSYDE FRANCIS E , ROBERTS THOMAS E JR , MCGEE ARTHUR L
CPC classification number: B27G1/00 , A23N7/01 , B23Q16/00 , B23Q16/001 , Y10T83/525 , Y10T83/536
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