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公开(公告)号：US3369650A
公开(公告)日：1968-02-20
申请号：US61641267
申请日：1967-02-15
Applicant: AJEM LAB INC
Inventor： CARETTO ANTONI C , KOEPKE JR FREDERICK W
IPC: B23Q41/02
CPC classification number: B23Q41/02
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