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发明名称
MOUTH CLOSING DEVICE
摘要
申请公布号
CA371048(A)
申请公布日期
1938.01.04
申请号
CAD371048
申请日期
申请人
ARTHUR V. CULLEN
发明人
ARTHUR V. CULLEN
分类号
主分类号
代理机构
代理人
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