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公开(公告)号:US3386826A
公开(公告)日:1968-06-04
申请号:US36607464
申请日:1964-05-08
Applicant: IBM
Inventor: AEBI CLAUDE M , SERAFIN BERNARD J
IPC: G03C1/52
CPC classification number: G03C1/52
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公开(公告)号:CA776110A
公开(公告)日:1968-01-16
申请号:CA776110D
Applicant: IBM
Inventor: SERAFIN BERNARD J , AEBI CLAUDE M
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