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发明名称
Calculating device
摘要
申请公布号
GB443689(A)
申请公布日期
1936.03.04
申请号
GB19350024436
申请日期
1935.09.02
申请人
CORNELIS JAN DUSSEL;JAN PASVEER
发明人
分类号
G06G1/04
主分类号
G06G1/04
代理机构
代理人
主权项
地址
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