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发明名称
Uhr.
摘要
申请公布号
CH247761(A)
申请公布日期
1947.03.31
申请号
CHD247761
申请日期
1944.10.04
申请人
RATTERMANN,HENRY,JR.
发明人
RATTERMANN,HENRY,JR.
分类号
G04B31/012
主分类号
G04B31/012
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