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发明名称
Variable condenser
摘要
申请公布号
US1824629(A)
申请公布日期
1931.09.22
申请号
US19270220982
申请日期
1927.09.21
申请人
SHERFY ROLLAND F
发明人
SHERFY ROLLAND F.
分类号
主分类号
代理机构
代理人
主权项
地址
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