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发明名称
Driving mechanism
摘要
申请公布号
US1956733(A)
申请公布日期
1934.05.01
申请号
US19310534104
申请日期
1931.04.30
申请人
ELECTRICAL RESEARCH PRODNCTS INC.
发明人
SMALL CHARLES JOHN PERCIVAL
分类号
G11B15/46
主分类号
G11B15/46
代理机构
代理人
主权项
地址
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