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发明名称
Machine à calculer.
摘要
申请公布号
CH152004(A)
申请公布日期
1932.01.15
申请号
CHD152004
申请日期
1930.07.17
申请人
DEBENHAM,ERNEST RIDLEY;ROWLEY,CHARLES DONOVAN;ISHERWOOD,HAROLD
发明人
RIDLEY DEBENHAM,ERNEST;DONOVAN ROWLEY,CHARLES;ISHERWOOD,HAROLD
分类号
主分类号
代理机构
代理人
主权项
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