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发明名称
Mail box signal
摘要
申请公布号
US1927736(A)
申请公布日期
1933.09.19
申请号
US19320641644
申请日期
1932.11.07
申请人
DAVIS ARTIE L;HAWKINS JOHN H
发明人
DAVIS ARTIE L.;HAWKINS JOHN H.
分类号
A47G29/122
主分类号
A47G29/122
代理机构
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