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发明名称
Mirror for watches
摘要
申请公布号
US1775915(A)
申请公布日期
1930.09.16
申请号
US19290331019
申请日期
1929.01.08
申请人
ADOLF R. KOEHLER
发明人
PETERSON ALFRED L.
分类号
G04B37/12
主分类号
G04B37/12
代理机构
代理人
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