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发明名称
Calendar and like display device
摘要
申请公布号
US2259336(A)
申请公布日期
1941.10.14
申请号
US19390255237
申请日期
1939.02.08
申请人
DICKERSON RAWSON P
发明人
DICKERSON RAWSON P.
分类号
G09D3/02
主分类号
G09D3/02
代理机构
代理人
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