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发明名称
MONO-RECORDING TRAP NEST
摘要
申请公布号
CA314946(A)
申请公布日期
1931.09.08
申请号
CAD314946
申请日期
申请人
WILLIAM ALBERT HARRON
发明人
WILLIAM ALBERT HARRON
分类号
主分类号
代理机构
代理人
主权项
地址
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