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发明名称
Drive for pendulum swing for electric clocks
摘要
申请公布号
US2617246(A)
申请公布日期
1952.11.11
申请号
US19500177228
申请日期
1950.08.02
申请人
UNITED METAL GOODS MANUFACTURING CO., INC.
发明人
PUNZAK JOSEPH F.
分类号
G04B45/00
主分类号
G04B45/00
代理机构
代理人
主权项
地址
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