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公开(公告)号：US3191441A
公开(公告)日：1965-06-29
申请号：US22127562
申请日：1962-09-04
Applicant: SPERRY RAND CORP
Inventor： ERICKSON ROBERT A
IPC: B23K11/24
CPC classification number: B23K11/248 , G01N2201/0813
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