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发明名称
Crystal holder
摘要
申请公布号
US2464046(A)
申请公布日期
1949.03.08
申请号
US19470780620
申请日期
1947.10.18
申请人
KUENSTLER WALTER E
发明人
KUENSTLER WALTER E.
分类号
H03H9/09
主分类号
H03H9/09
代理机构
代理人
主权项
地址
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