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发明名称
SILENCING DEVICE
摘要
申请公布号
CA438823(A)
申请公布日期
1946.12.24
申请号
CAD438823
申请日期
申请人
ARTHUR HENRY PATTISON
发明人
HENRY ERNEST CRATCHLEY
分类号
主分类号
代理机构
代理人
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地址
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