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公开(公告)号：CA814649A
公开(公告)日：1969-06-03
申请号：CA814649D
Applicant: IBM
Inventor： LESSOR ARTHUR E JR , GLANG REINHARD
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公开(公告)号：CA773783A
公开(公告)日：1967-12-12
申请号：CA773783D
Applicant: IBM
Inventor： MADDOCKS FRED S , LESSOR ARTHUR E JR , DOBBIN WILLIAM J
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