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发明名称
Piezo-electric oscillation generator
摘要
申请公布号
US1756000(A)
申请公布日期
1930.04.22
申请号
US19250055464
申请日期
1925.09.10
申请人
MILLER JOHN M
发明人
MILLER JOHN M.
分类号
H03B5/34
主分类号
H03B5/34
代理机构
代理人
主权项
地址
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