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发明名称
Differential mechanism for calculating machines
摘要
申请公布号
US2693906(A)
申请公布日期
1954.11.09
申请号
US19510252713
申请日期
1951.10.23
申请人
BURROUGHS CORPORATION
发明人
BUTLER THOMAS M.
分类号
G06C7/06
主分类号
G06C7/06
代理机构
代理人
主权项
地址
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