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发明名称
Calendar clock mechanism
摘要
申请公布号
US2056905(A)
申请公布日期
1936.10.06
申请号
US19330691765
申请日期
1933.10.02
申请人
KENNETH T. NORRIS
发明人
NEYHART ARTHUR P.
分类号
G04B19/253
主分类号
G04B19/253
代理机构
代理人
主权项
地址
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