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发明名称
CALCULATING DEVICES
摘要
申请公布号
CA723032(A)
申请公布日期
1965.12.07
申请号
CAD723032
申请日期
申请人
STANDARD TELEPHONES AND CABLES MFG. CO. (CANADA) LTD.
发明人
KAREL J. STALLER
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主分类号
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