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发明名称
Rechenschieber.
摘要
申请公布号
CH149469(A)
申请公布日期
1931.09.15
申请号
CHD149469
申请日期
1930.09.16
申请人
BAUMANN & CIE.
发明人
CIE. BAUMANN &
分类号
G06G1/02
主分类号
G06G1/02
代理机构
代理人
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